IA“ Li‘u In.., (‘3? ACCO‘JNHNG FOR LGNG-T mm mum.-- 1!“ COMMON STOCK Dissertation for the Degree 0! PM). M‘CHEGAN STAYE HNNERSWY CLAUD D‘N AWE DOWELL 1974 «J I . LIBRARY : Prithiga‘ Shite g J”. Univcuity 0} 1' Of, 'Fxn 9"K‘VY . 1'3"... ’3; This is to certify that the thesis entitled AN EMPIRICAL EVALUATION OF THE COST AND EQUITY METHODS OF ACCOUNTING FOR LONG—TERM INVESTMENTS IN COMMDN STOCK presented by Claud Dwayne Dowell has been accepted towards fulfillment of the requirements for Ph.D. degree inBusiness Administration— Accounting Z7 Major professor Date 4'37'7‘7‘ 0-7 639 .cl ‘lnr:\ } a ' ‘ Vfl *tfilf v t - . ' , 1‘. 2 , _ ., a .. . tuna-rm. ,- C '1” 637-3": . . Q" ‘0:- on m4 ,- ‘ ‘ -. 7 " -— ‘ ‘vn unmcn . ‘ Catlin-r ctr", In“ . . C . ’nl‘31- flip it ‘ - ‘ 4; ' .n r r; . “C +3 t 01'! ccrzv-‘p‘. t' ' ‘ ~ir': :gmifl "YUM-‘- ”m 13- . ' .s-J. _. -‘ (um ' ..e w thee-r, tilt"?! .- .l : -v'..'....:; 5 .t " v renni‘uer‘s: ‘.”.flmM’i'-u '.’.:"‘u;.t,"j i” .. a ,A: an: r... exact” 1'5" H 'm ocwwric artery. u have: (F1 mr' .1 .} ans-h “dept that F1 uses ‘zwlg w" till! par; <. 1 W? U .rwanrxn animate » ~ 3 (’35!) n! We net sorrows as they, tho . -. for 5’1 u; m using a; put a! mutant 7 C :- W1: comings museum (on) an _ "3‘ 'v‘ ABSTRACT AN EMPIRICAL EVALUATION OF THE COST AND EQUITY METHODS OF ACCOUNTING FOR LONG—TERM INVESTMENTS IN COMMON STOCK By Claud Dwayne Dowell The purpose of this research effort is to provide empirical evi- dence of whether cost method generated data appears to have more, less, or the same usefulness potential as equity method generated data for investors in corporations with material unconsolidated common stock investments. The cost and equity methods are alternative methods of accounting for an investor corporation's long—term investments in common stock of other corporations. The first step in attempting to accomplish the purpose is the development of a conceptual framework in which to interpret observed investor reactions to cost and equity data. The second step is applying the conceptual framework to actually observed reactions. The conceptual framework is based on the semi-strong form of the efficient market theory (EMT) and the following six ideal conditions: (1) Two alternative accounting methods (A1 and A2) exist for measuring the same economic events. (2) Two identical firms (F1 and F2) exist, except that F1 uses A1 and F2 uses A2. (3) At the beginning of time period 1 (01), investors estimate the certainty equivalents (GEES) of future net earnings as they, the investors, define net earnings for F1 and F2 using as part of the input to the prediction process the quarterly earnings announcement (QEA) data m_' ”fin—w -.._ __ -r fl};,~' 7III_'____—___I__________—___'"""""""""'1PI'! Claud Dwayne Dowell released at the end of time period 0 (Q0). Inputs to the prediction process at the beginning of Q1 other than those attributable to A1 and A2 are identical for both firms. (A) No events occur during Q1 that stimulate investors to alter the predictions made at the beginning of Q1 except the QEAS released by F1 and F2 at the end of Q1. (5) Investors are rational and have no capital constraints. (6) The GEES made at the beginning of Q1 for F1 were perfect, but the corresponding GEES for F2 were imperfect, although investors were unaware of this at the time of estimation. Now obviously A1 provides data with greater usefulness potential for investors than A2. Furthermore, since the GEE of Q1 earnings for F1 was perfect, there is no stimulus at the end of Q1 for investors to revise GEES of net earnings for subsequent F1 quarters. If the GEES of net earnings for subsequent F1 quarters are not revised then the instan- taneous, unbiased price adjustment predicted by the EMT for the F1 QEA released at the end of Q1 is zero. In contrast, since the GEE of Q1 earnings for F2 was imperfect, there is a stimulus at the end of Q1‘ for investors to revise GEES of net earnings for subsequent F2 quarters. Furthermore, if all GEES of net earnings for subsequent F2 quarters are revised in the same direction, as argued in the thesis, then the instane taneous, unbiased price adjustment predicted by the EMT for the F2 QEA released at the end of Q1 is nonzero. Accordingly, one of the two conclusions of the conceptual framework is that under the assumed conditions, the smaller the price adjustment immediately following the Q1 QEA, the greater the usefulness potential of the Q0 output of an . accounting method to investors on average. I Glaud Dwayne Dowell A second conclusion of the conceptual framework is concerned with the interpretation of investors' responses to accounting data when those responses are measured in terms of share trading volume. Within the same time frame as described above share trading volume is a reflection of individual investors' earnings expectational changes (EECS) whereas price change is a reflection of the market's average EEC. But many different distributions of individual investors' EECS may result in the same average (or market) EEC. For example the investors' EEC distri— bution associated with A1 may be normal with small dispersion and the investors' EEC distribution associated with A2 may be normal with large dispersion but both distributions may have the same mean. Now assume that all investors who experience EECS different from the mean EEC adjust their portfolio position by buying or selling the security and all investors who experience EECS equal to the mean hold their portfolio position. If the common stock market is a market of many small inves- tors each wishing to hold the same number of shares of the security and the EEC distributions associated with A1 and A2 are as described above, then, the volume of F1 Shares traded would be smaller than the volume of F2 shares traded. Furthermore, it should be obvious that the degree of consensus among investors about F1 EECS is greater than about F2 EECS. Accordingly, the second conclusion of the conceptual framework is that under the assumed conditions, the smaller the volume of shares traded immediately following the Q1 QEA the greater the degree of consensus among investors regarding the usefulness potential of the Q0 output of an accounting method. The conceptual framework is applied, i.e. a test application of the conceptual framework is made, by comparing, via a Mananhitney U test, -'!-F‘T Glaud Dwayne Dowell investors' responses to QEAS of a sample group of cost method associated firms and a sample group of equity method associated firms, selected on the basis of ten criteria designed to control and/or compensate for differences between real world and ideal conditions. The criteria include: (1) A control for competing information; (2) A control for profitability; (3) A control for liquidity; (A) A control for accounting policy characteristics; and (5) A compensation for industry differences. _The response measurements are made in percentage terms over the five day trading week immediately following a QEA and are adjusted for uncontrollable and/or uncompensatable factors such as the general market effect, capitalization changes, and the effect of nonpublic information. Unfortunately, the use of the selection criteria both severely limited the sample sizes (eight firm—quarters in each group) and made the samples nonrandom. Accordingly, the statistical results are incon— CIusive. Intuitively, however, the empirical findings appear to indicate that on average equity method data is more useful than cost method data and that the degree of consensus among investors regarding 'the usefulness of cost data is greater than that of equity data. Finally, the implications and limitations of the research effort are noted and several suggestions for further research are made. AN MIRICAL EVALUATION OF THE COST AND NET! METl-DDS OF ACCOUNTING FOR LONG-TERM INVE'IMENTS IN COMMON STOCK By Glaud Dwayne Dowell A DISSERTATION Submitted _to Michigan State University in partial fulfillment of the requirements for the degree of DOOM OF PHILOSOPHY 1971» di‘:" '7 . 2, .L uh’ 1151"" , ‘ r ‘1) TCT_.~. ‘ . ..‘ < a ‘ ‘3 ‘2) To my w: -, _ .‘ '~ . -‘ ;.- ." .‘ . 1;": _ ' s « 1-. . .' ‘IM contains. . . w‘~“.x:, ~ the res»_~».L ~.'t"‘.. ."“;' "13) 5‘21"! 1. ,. n ' , . - ~- ‘ tr) 3.1 T1125; cc twp. . -. i”. (‘4. 1 Ian) “wads ‘ . I“, . :W runes: f : ., a r .2". x, . . . r" a . I . , .. ..' . .» _ a ,1. - N. n“. _-J .-’ ..,v_r . " ufr'h .".‘, ~14 ..._ . . _ , J.” To y l. . i ‘f 1- guidance during we en's-1 verve-:1- - ‘,.",Y‘[. C; 3'“ 1;;2 1‘: r}. "‘11:” inn. rer tax 3!; u: we, any errors r in V l . , C, ties .u'u". any wists. v «H.» - . . ‘ 11 ‘ ‘ ‘ ~ 1‘ I ‘ | .-- 'ta _ ~ “‘ . $ _ ‘ ACKNOWIEDWTS Not unlike other researchers, I am indebted to many individuals .2 for their aid in the completion of this research. However, I am _ I '. particularly indebted to the following individuals: .5 (1) To my parents for their initial inspiration; (2) To my wife, Linda, for her patience, cooperation, encourage- ‘ in; meat, and continuing inspiration as well as her typing services . ‘ throughout the research effort; (3) To aw daughter, Carin, who although yet unaware has been compelled to sacrifice the compamr of her daddy on many occasions .I 1flaring the research effort; and _ (1+) To my connfittee members—Professor George Mead (Chairman), ghofessor Gardner Jones, and Professor Phillip Carter—for their j“ fiflbtaiculous guidance during the entire research effort. g! v or course, any errors or inadequacies regarding the research are ‘-. ’ ins responsibilities and only mine. ' ‘ .‘i: ‘ . , TABLE OF CONTENTS Chapter Page I O INTRODUC 'I'ION O I O C O 0 O O O O O I O I O 0 0 O O O O O O 1 Purpose and Approach of This Research Effort . . . . 1 Background of the Problem Under Consideration in This ResearCh Effort 0 o o c o o o o o o c I o o The Organization Of the TheSiS o o o o c o c o c c a The Controversy Reviewed . . . . . . . . . . . . . . IntrOductionococo-0.00.0000... 3 7 II. LITERATURE REVIEW AND RESEARCH JUSTIFICATION c o o o o o o 8 8 8 TheArgumentScoo-00.00.00.000. 9 Cost Versus Equity Empirical Research . . . . . . . . 12 IntrOdUCtion o c c o o o c o o c a o c o o o o o 12 Barrett's ResearCh o o o o o o .o o o o c o o o o 12 COHCIUSion c o o c o o o o o o c c o o o o c o o 17 other Related ResearCh o o o o o o o c o o o c o c o 17 IntrOduction o o o c o o I o c o o o o o o o o o 17 The Review . . . . . . . . . . . . . . . . . . . 18 ConCIUSionS o c o o o o o a c o o o o a o o o o o o c 30 III. METHODOLOGY-—CONCEPTUAL CONSIDERATIONS . . . . . . . . . . 32 TheEffiCient Market meow-00.0.0000... 32 Quarterly Earnings Announcements as New Public Irlformationooooooococoa-coco... 33 The Content of Quarterly Earnings Announcements and the Primary Criterion for Evaluating the Alternative Methods of Generating the Content of Quarterly Earnings Announcements . . . . . . . . 33 The Locus and Definition of Usefulness Potential . . 3h Measuring and Comparing the Usefulness Potential of Alternative Accounting Outputs in an EfficientMarket.o............... 35 iii Extending the Conceptual Framework to VOlumeMeasureSo-ooooooo.0000. Interpreting Price Change Measurements and Volume of Shares Traded Measurements Together 0 I O O O I O O O O O I O O I O O 0 Combination 1 Combination 2 Combination 3 Combination A Combination 5 Combination 6 Combination 7 Combination 8 Combination 9 Sumam O O O O O C O O O I O I O O C O O O O C IV. METHODOLOGY-—APPLICAIION CONSIDERATIONS . . . . . . IntroduCtj-on O I O O I O I O O O O I O O O O 0 Ideal Versus Real World Conditions . . . . . Selection Criteria Implied by the Ideal Condi- tions and Procedures for Determining Compli— ance With These criteria 0 n o o o o o u o 0 TWO Additional SeleCtion criteria 0 o o o o o 0 Time Period Covered by the Research . . . . . . Measurement Interval and Measurement Forms for Investors' Reactions to Quarterly Earnings Announcements . . . Data Adjustments o o o o o o o o n o o o c o o The Comparison . . . . . . . . . . . . . . . . smar'y o o o o o o o a o a o o o o o o o o o I V. EMPIRICAL FINDINGS, IMPLICATIONS, LIMITATIONS AND SUGGESTIONS FOR FURTHER RESEARCH . . . . . . . o IntrOduction o o o I o o 0 Empirical Findings 0 o o o o o o c o o o o o 0 Implications o o o o o o o o o o o o o o o o 0 Limitations . . . . . . . . . . . . . Suggestions for Further Research . . . . . . . COHClUSion o o o o o o o o o o o o o o o o I o BIBIIIOMI'IY I O C O O C C I O O C I C l I O 0 O I O C C 0 iv 0 Page 90 90 101 104 109 110 LISTOF TABLES Tabular Arrangement of Barrett's Experimental Design Tabular Summary of Barrett's Statistical Tests-— ContrastsandResults......o.......o Possible Combinations of Results of Price Change Com- parisons and Volume of Shares Traded Comparisons . Composition of Cost and Equity Firm Quarter Groups . Selection Criteria Severity in Terms of Sequential Sample Size Reduction Rates 0 e o o o o o e o e e 0 mice Change comparison 0 o o o o o e e e e o o e o e VOlume comparison 0 o e_ o e o o o o o e e I o e o e 0 Effects of Price Data Adjustments . . . . . . . . . . Effectsof Volume Data Adjustments . . . . . . . . . Page 15 93 9h 96 98 .7— Own,» 1‘ ) J1 _,5 '.' (A z: ‘79- '_~ ‘I a A. 9-5: ‘-:,.. ,_,‘ .. 4“- :0 LIST OF FIGURES Figure Page 1. Schematic of Information Set Evaluation From Two Different Levels of Observation——Investors' Level of Observation and an Independent Agent's Level Of Observation I I I I I I I I I I I I I I I I I I I I I 38 2. Illustrative Earnings Expectational Change Distri— butions I I I I I I I I I I I I I I I I I I I I I I I I I #5 3. Possible Results of Comparisons—~Combination 1 SChematic I I I I I I I I I I I I I I I I I I I I I I I I “9 A. Possible Results of Comparisons-—Combination 2 SChematiC I I I I I I I I I I I I I I I I I I I I I I I I 50 5. Possible Results of Comparisons—-Combination 3 SChematj-C I O O I O C O O I O O O O O O O I O O O O O O I 51 6. Possible Results of Comparisons——Combination 4 SC hematic O O O O O I O I O O O I I O O O I O C 0 C O O I 5 2 7. Possible Results of Comparisons-—Combination 5 Schematic I I I I I I I I I I I I I I I I I I I I I I I I 53 ‘ 8. Possible Results of Comparisons-Combination 6 SChematic I I I I I I I I I I I I I I I I I I I I I I I I 5A 9. Possible Results of Comparisons—~Combination 7 Schematic I I I I I I I I I I I I I I I I I I I I I I I I 55 10. Possible Results of Comparisons—-Combination 8 SChematiC I I I I I I I I I I I I I I I I I I I I I I I I 56 11. Possible Results of Comparisons-—Combination 9 SChematiC I I I I I I I I I I I I I I I I I I I I I I I I 57 CHAPTER I INTRODUCTION In this chapter is a brief statement of the purpose and approach of this research effort, the background of the problem under considera- tion, and the organization of the thesis. Eggpgse and Approach of This Research Effort The purpose of this research effort is to provide empirical evi- dence of whether there is a difference in the usefulness of alternative accounting methods' outputs from the viewpoint of investors in publicly owned corporations (one class of accounting data users); specifically Whether cost method generated data appears to have more, less, or the same usefulness potential as equity method generated data for investors in corporations with material unconsolidated common stock investments. The cost and equity methods are feasible alternative methods of accounting for an investor corporation's long-term investments in common stock of other corporations.1 The relative usefulness potential of data generated by alternative accounting methods is, according to the American Accounting Association Committee to Prepare A Statement of Basic Accounti Theo , the most important criterion against 1Harry Simone and Wilbert E. Karrenbrock, Advanced Accounting ... I_.. ,... '4‘. v "V ,.I 2 which to evaluate feasible alternative accounting methods.2 The more potentially useful the data generated by an accounting method the better the accounting method.3 The general framework of this research effort, based on the semi- strong form of the efficient market theory, involves comparing inves— tors' market based reactions (i.e. price change and share trading volumeh) to cost method generated data and equity method generated data and drawing inferences from the comparative reactions. According to this framework, developed in Chapter III, the alternative accounting nwthod associated with the smaller price change immediately following an earnings announcement is accorded the distinction of generating data With the greater usefulness potential for investors on average. The alternative accounting method associated with the least share trading volume immediately following an earnings announcement is accorded the distinction of generating data for which there is greater consensus among investors regarding the usefulness potential of the method's out- puts.— The particular empirical approach of this research effort, devel— oped principally in Chapter IV, involves comparing (after abstracting EXOgenous influences) both the total price change and the total share trading volume in the earnings announcement week (the first five trading *— 2American Accounting Association, A Statement of Basic Accounting Theogy (Evanston, 1966), p. 3. 31bid. “William H. Beaver, "The Information Content of Annual Earnings Announcements," 'rical Research in Accounti : Selected Studies, 1268é9a Supplement to Velume 5 of the Journal of Accounti Research, -70. E 3 days following an earnings announcement) associated with two sample groups of investor corporations, a group using the cost method and a group using the equity method. The two groups are similar except for the accounting alternatives on which the dichotomous classification is based. It should be noted at the outset, however, that application of a set of selection criteria considered important in obtaining similarity between the sample cost and equity groups could, and did, result in samples of severely restricted size and questionable randomness. Consequently, the use of statistical methods of comparing the groups was inappropriate. However, to complete the steps in the research design, a statistical method of comparison is illustrated, i.e. applied as if the groups had been selected randomly. The resulting conclusions though are stated simply as intuitive conclusions and not as statistically valid ones. Backgnound of the Problem Under Consideration in This Research Effort Although thirty—two feasible alternative methods of accounting for an investor corporation's long-term investments in common stock of other corporations exist, by far the two most widely used, during the Period covered by this research, were the cost method and the equity method.5 The two methods will generally produce very different results, 5Melvin C. O‘Connor and James C. Hamre, "Alternative Methods of Accounting for Long-Term Nonsubsidiary Intercorporate Investments in Common Stock," The Accounti Review, XLVII (April, 1972), pp. 308-319; and American Institute of Certified Public Accountants, Accounting Trends and Technigues (New York, 1950-1970). A in terms of their effect on the investor corporation's reported earnings and financial position.6 Using the cost method, the investor corporation initially records the investment at its acquisition cost. The investor corporation's investment account is then adjusted only for permanent decreases in the value of the investment or for dividends received in excess of the investee corporation's earnings subsequent to the date of investment. Income from the investment is recognized by the investor corporation only to the extent that dividends from investee corporation earnings subsequent to the date of investment are received by the investor corporation.7 Using the equity method, the investor corporation also initially records the investment at its acquisition cost. However, the investor corporation's investment account is adjusted periodically for its Share of earnings or losses of the investee corporation (subsequent to the date of investment and after elimination of all intercompany trans— actions), for all dividends received from the investee corporation, and for permanent decreases in the value of the investment. Income from the investment is determined by the investor corporation's share of earnings or losses of the investee corporation (qualified as above) and by amortization of any difference between the cost of the investment and the equity in the underlying net assets of the investee corporation at the date of investment.8 6Simons and Karrenbrock, pp. 3A7-392. 71bid-. pp. 377-392. 81mm, pp. 347—365. 5 Advocates of the cost method criticize the equity method severely for its departure from generally accepted principles of revenue recog- nition, its mixture of different elements in the investment account, and its special analyses required to determine retained earnings legally available for dividends and income subject to taxation. They support the cost method as one consistent with generally accepted accounting principles applied to other assets.9 Supporters of the equity method emphasize the substance of the investor corporation—investee corporation relationship. They criticize the cost method for preventing the recognition of all earnings which are related to the substantive entity and for the possibility of invest— ment income manipulation when the cost method is used. They hail the equity method because it produces results similar to that of consoli- dation.10 Consolidated statements are assumed to be more meaningful than separate statements.11 91bid., p. 390; and Walter B. Meigs, Charles E. Johnson, and ' Thomas K. Keller, Advanced Accounting (New York, 1966), pp. 297-298. 10Meigs, Johnson, and Keller, p. 298; and American Institute of Certified Public Accountants, Accounting Principles Board, "APB Opinion NO. 18: The Equity Method of Accounting for Investments in Common Stock," The Journal of Accountancy (June, 1971), pp. 63-68. 11American Institute of Certified Public Accountants, “Accounting Research Bulletin No. 51-—Consolidated Financial Statements," nag Accounti Princi les: Ori 'nal Pronouncements as of Febru 1 l 1 Chicago, 1971 , II, 091. 4.. 6 This is the controversy which is the impetus for this research effort.12 Advocates of both methods have argued at length for their position.13 Others have argued that either method is equally justi- fiable.”+ However, these arguments have been in the majority a priori in nature. Indeed, neither the cost advocates nor those contending that either method is equally justifiable have presented any evidence supporting their positions, particularly in terms of the usefulness potential criterion. Equity advocates have done little better.15 As noted previously, this research effort is designed specifically to provide the heretofore missing evidence bearing on this question. 12Although a controversy still exists over which of the accounting alternatives, cost or equity, should be used (See for example O'Connor and Hamre, pp. 308-319), it should be emphasized that the Accounting Principles Board of the American Institute of Certified Public Account- ants has settled the issue of which accounting alternative must be used in its "Opinion No. 18: The Equity Method of Accounting for Investments in Common Stock." This research effort, however, is designed to provide SVidence bearing on the question of which accounting alternative should be used, and will therefore provide evidence either in support of or against the Accounting Principles Board's opinion. 13See for example, Simone and Karrenbrock, p. 390; American Institute of Certified Public Accountants, Accounting Principles Board, Pp. 64~66; P. T. Driscoll, "Consolidated Financial Statements and the EQuity Method of Accounting,” The New York Certified Public Accountant (August, 1971), pp. 567—571; M—aurice M"o'o"ni't'z',"'Th”-e E_ntity Th' e'ogz —of Consolidated Statements (Madison, 19th), p. 59. 1l"'0'Connor and Hamre, pp. 308-319; and Meigs, Johnson, and Keller, PP- 297-298. 15A review of the accounting literature published since January, 1952, revealed only one research effort attempting to evaluate the cost and equity accounting methods, and even it is subject to criticism. See the section entitled "Cost Versus Equity Empirical Research" in Chapter II I I11: E nu.-. ! o I - um sation of the Thesis ,3, '7". Chapter I is devoted to a statement of the purpose and approach .' "ofslthie research effort, a discussion of the accounting methods under “amideration, a synopsis of the arguments regarding the merits and 4" dinerits of each method, and a description of the organization of the Tithsis. Chapter II contains an in—depth specification of the arguments “of each party to the controversy, a review and critique of empirical Work which has been done on the controversy, and a review of other -emp:l.rical work bearing on the market based research design for this ‘ -._effort presented in Chapters III and IV. The research findings and A their implications are presented in Chapter V along with a discussion 9‘ 'M the limitations of the research and suggestions for further research. , J... w "(W :‘.(-'. . ., ‘ ,‘. V’ ‘ CHAPTER II LITERATURE REVIEW AND RESEARCH JUSTIFICATION The Controversy Reviewed Introduction. Thirty—two feasible alternative methods of account- ing for a corporation's long—term investments in common stock of other corporations exist, and even a cursory review of the accounting litera- ture reveals that a controversy exists over which of these thirty-two alternatives is best.1 It is beyond the scope of this paper to review the arguments pro and con related to all thirty-two alternatives. However, a significant portion of the controversy centers around the question of whether the cost method is better than the equity method.2 (The cost method and the equity method were the two most widely used of the thirty-two feasible alternatives during the period covered by this research.)3 This is the question under consideration here. The 1Melvin C. O'Connor and James C. Hamre, "Alternative Methods of Accounting for Long—Term Nonsubsidiary Intercorporate Investments in Common Stock," The Accountin Review, XLVII (April, 1972), pp. 308-319. 2Ibid.; American Institute of Certified Public Accountants, Accounting Principles Board, "APB Opinion No. 18: The Equity Method of Accounting for Investments in Common Stock," The Journal of Accountanc (June, 1971), pp. 63-68; M. Edgar Barrett, "APB Opinion Number 18: A Move Toward Preferences of Users," Financial Analysts Journal (July- AuguSt) 1972), Pp. 47-540 3O'Connor and Hamre, pp. 308—319; Barrett, p. A7; American Institute of Certified Public Accountants, Accounting Trends and Technigues (New York, 19 50-1970) . 8 9 arguments of both the cost method advocates and the equity method A advocates are summarized below. The Argnnents. Cost advocates argue that '. . . the equity method involves basic departures from generally accepted practice in the recognition of revenue. Earnings of the subsidiary are viewed as earnings of the parent, an economic View which, it can be maintained, finds proper expression on the consolidated statement and not on the statement representing the separate legal entity.”5 ”Income of a subsidiary is not realized by the parent until there has been a transfer of liquid assets (that is, dividends declared or paid)." Equity supporters reply that “An exchange of liquid assets is not the only acceptable evidence of realization. The change in the net assets of a subsidiary as a result of Operations is based on evidence equally as good as that used to establish the realized growth of net assets which produces the income of the parent. Since the parent has a controlling interest in the subsidiary, there is no question of ultimate control over the increase in net assets; therefore, recognition on the parent's books of its share of any undistributed income of the subsidiary is warranted." hThe arguments presented in this section are, almost without exception, stated in the context of one corporation having an absolute Controlling interest (greater than fifty percent ownership) in another corporation. However, it would appear that since the Accounting Principles Board of the American Institute of Certified Public Account— ants has structured its opinion on cost versus equity accounting around the concept of effective control (presumed to exist, in absence of eVidence to the contrary, with only a twenty percent interest, and in some cases with less than a twenty percent interest) that these argu- ments would apply in that context (effective controls as well. (See American Institute of Certified Public Accountants, Accounting Prin- ciples Board, pp. 63-68.) 5Hilbert E. Karrenbrock and Harry Simons, Advanced Accounting (Cincinnati, 1961), p. 385. 6Walter B. Meigs, Charles E. Johnson and Thomas F. Keller, Advanced Accounting (New York, 1966), p. 297. 7Ibid. 10 "[Furthermore,] . . . in statements prepared from the legal entity viewpoint, the issue of proper asset valuation is still present. The original cost of an investment in an unconsolidated subsidiary becomes an outdated historical figure as time passes and the subsidiary grows through the retention of earnings. Since the accountant has objective evidence (in the subsidiaries' financial statements) of the amount of this growth, he should use this information to update the valuation of the investment."8 The second objection that cost advocates have to the equity method is as follows: tion ”The valuation of an investment in a subsidiary when it is accounted for on an equity basis is a hodgepodge. . . ." ". . . Investment balances fail to offer either costs or current values of subsidiary holdings, since they are composed of a mixture of different elements-costs (or investment values) as of stock acquisition dates, modified by adjustments based upon the changes in capital reported on the books of the subsidiaries following acquisitions."lo “Any difference between cost and the book value of the subsidiary's net assets at date of acquisition remains, and the equity basis valuation of cost plus or minus changes in the underlying book value of subsidiary net assets defies interpretation."11 The equity advocates answer this second objection to their posi— as follows: "The price paid by the parent for its investment is more likely to reflect current value at that time than the book value of the parent's equity in the subsidiary. Thus the equity method begins with a valid basis of valuation and this valuation is then adjusted for changes which can be objectively measured on the basis of the same accounting concepts as used by the parent."12 81bidI’ ppI 297-2980 91pm. , p. 298. 10Karrenbrock and Simons, p. 385. 11Meigs, Johnson, and Keller, p. 298. 12mm. 11‘ The third objection that cost advocates lodge against the equity method is: “. . . the equity method calls for analysis of the accounts and special adjustments in arriving at the amount of retained earnings legally available for dividends and the amount of income that is subject to income taxes." The response from the equity supporters to this argument could be that the analyses of accounts and special adjustments to arrive at retained earnings legally available for dividends are little, if any, more difficult than cost behavior analyses and, furthermore, that the worth of a better valuation of assets on the statement of financial position far outweighs the relatively insignificant difficulty asso- ciated with the analyses and adjustments. Special analyses with respect to income taxes must be prepared anyway due to the complexities of the income tax laws. Finally, equity advocates indict the cost method on the grounds that when it is used the possibility of dividend, and consequently income from investment, manipulation exists. Cost supporters can only affirm this indictment stated in terms of a possibility. However, they can contend, with evidence, that this POSSibility has not historically been used to grossly distort the reported income of the investor corporation.u+ ‘— 13Karrenbrock and Simons, p. 385. 1[‘Nicholas Dopuch and David F. Drake, "The Effect of Alternative Accounting Rules for Nonsubsidiary Investments,“ Mirical Research in A(Ecounti : Selected Studies 1966, a Supplement to Volume 1. of the ECNEEEI 0% Iccountin. Research, pp. 192—227. 12 Cost Versus Eguity Empirical Research Introduction. The arguments in the accounting literature reviewed above are a priori in nature. It would appear from the review of these arguments that resolution of the controversy via a priori argumentation is improbable. In this vein, some accountants have suggested that resolution of the controversy is, most likely, to be obtained via empirical research addressing the controversy.15 However, it seems that only one such attempt at empirical resolution has been made. Indeed, an extensive systematic review of the accounting literature covering the period of January, 1952, through December, 1972, revealed onhy one empirical research effort addressing the question of whether the cost method is better than the equity method on the basis of any evaluation criterion. And even the one empirical research effort unearthed is subject to criticism. ‘The single attempt at empirical resolution of the controversy referred to above was conducted by M. Edgar Barrett of the Harvard Business School and was reported in the July-August 1972 Financial Agnlysts Journal under the title, "APB Opinion Number 18: A Move Toward Preferences of Users."16 This research is summarized and criticized below. Barrett's Research. According to Barrett, ”The technique employed in the study consisted of asking selected members of the Financial Analysts Federation to ‘— 15O'Connor and Hamre, p. 318. 16M. Edgar Barrett, ”APB Opinion Number 18: A Move Toward Preferences of Users,” Financial Analysts Journal (July-August, 1972), pp. [+6-53I 13 put a price on the common stock of companies offering stock to the general public for the first time.” Furthermore, according to Barrett, "The general thrust of the inquiry was to determine whether financial analysts would place a higher estimated value on the common stock of a company simply as a function of (1) the method employed in accounting for long term investments in common stock or of (2) the amount of information included in the notes to the published financial statements about the effects of using the alternative method.”18 The methodology used in the study is described by Barrett as follows: “The methodology included creating prospectuses for two hypo- thetical petroleum companies. These hypothetical companies (Inglewood Oil Company and Miller 011 Company) represented a crude oil producer with extensive Middle East holdings and an integrated petroleum company with both domestic and foreign facilities, respectively. “Each financial analyst invited to participate in the study received a prospectus for each of the two 011 companies. “The 750 financial analysts asked to participate were divided into three groups of 250 analysts. Members of the first group (experimental class one) received prospectuses which contained less total information about the inter~ corporate investments of the two hypothetical oil companies than was contained in the prospectuses provided to members of either of the other two groups. While members of the ‘ second and third groups (experimental classes) received prospectuses with the same total amount of information about the intercorporate investments of each oil company, the information was provided in a different form to each of the two classes.” This experimental design was summarized by Barrett in the follow; irug tabular arrangement.20 17Ibido, pI [bee 18Ibid. 191bid., pp. 48-h9. zoIbidI, p. 19. 1h TABLE 1 TABULAR ARRANGEMENT OF BARRETT'S EXPERIMENTAL DESIGN Experi— Accounting . mental Method Am°u§2 ggogizgigsure Class Employed 1 Cost Quoted Market Value Only 2 Cost Quoted Market Value, Annual Earnings Under the Equity Method, and Cumulative Investment Under the Equity Method 3 Equity Quoted Market Value, Annual Earnings Under the Cost Method, and the Original Cost of the Investment The financial analysts participating in the study were asked to respond to the following question: ”Given only the information provided, what dollar value per share would you place on the common stock of these two companies on their prospectus dates: Inglewood Oil Company $. . . . . . per share Miller Oil Company $. . . . . . per share"21 a Then, "Appropriate statistical tests were applied to the entire number of responses received, as a group, for each of the two oil companies." The results of the statistical tests may be summarized in the fOllowing tabular form.23 5 211bid., p. 50. zzIbid. 23Ibid., p. 52. l5 TABULAR SUMMARY OF BARRETT'S STATISTICAL TESTS-—CONTRASTS AND RESULTS Class , _ . Contrast Inglewood 011 Company Results Miller 011 Company Results 1 vs 3 Reject HO that the class 1 Reject HO that the class 1 and class 3 responses are and class 3 responses are statistically similar. statistically similar. 1 vs 2 Reject HO that the class 1 Reject Ho that the class 1 and class 2 responses are and class 2 responses are statistically similar. statistically similar. 2 vs 3 Do not reject HO that the Do not reject Ho that the class 2 and class 3 re— class 2 and class 3 re- sponses are statistically sponses are statistically similar. similar. Barrett places the following interpretation on the above statis- tical results: ”The fact that a statistically significant difference exists between the responses to experimental classes one and three, while none exists between the responses of classes two and three, indicates that professional security analysts-in our experimental setting—-prefer data prepared under the equity method to data prepared under the cost method. This is suggested, of course, by the fact that members of experimental class two (which had enough information in the footnotes to enable their recasting the financial data in terms of either the cost or equity methods) submitted value estimates more in line with those of class three than those of class one.'2h Now to criticize, it can be contended that Barrett has overstated his case. Even Barrett warns that '. . . the difference between experimental class one and the other two experimental classes was the total amount of audited information about the intercorporate investments, while the difference between the last two experimental 25 classes was in the method of presenting such information." (Emphasis added) 2A1bido, p. 530 251bid., p. 1.9. .r- 1» 16 Since the difference between experimental classes one and three was the total amount of data provided and no difference existed between experimental classes two and three with respect to the amount of data provided, a more plausible interpretation of the statistical results is simply that financial analysts respond differently to different amounts of data and similarly to similar amounts of data, regardless of the presentation form. In other words, it is not necessary to assume (as Barrett has done in deducing his interpretation of the statistical results) that the financial analysts in experimental class two recast the cost method generated data provided them in terms of equity method generated data and then responded to this recast data. The assumption is, of course, a feasible one. However, it is also feasible that members of both experimental class two and experimental class three (1) recast the data provided them in terms of some common intermediate form, i.e. a form other than that provided by either cost or equity, or (2) used both the cost generated data and the equity generated data in a joint sense. Either of these alternative behavior Patterns, certeris paribus, would likely result in the same response Pattern as that observed by Barrett. If Barrett wished to determine whether financial analysts preferred equity method generated data to coat method generated data, i.e. whether or not his assumed behavior INIttern was accurate, given the design of his questionnaire-based field enEjperiment, he should have included a fourth experimental class in which the equity method was the accounting method employed and only the quoted “Hirket value was disclosed in footnotes. Then, if a statistically significant difference existed between responses in classes one and two, One and three, and one and four, but no statistically significant 17 difference existed between responses in classes two and three and three and four, the conclusion that financial analysts prefer equity method generated data to cost method generated data would be more defendable. Conclusion. Once again, it can be contended that Barrett has overstated his case. And since no other empirical research addressing the controversy was revealed by the literature review, it would appear that if resolution is to be obtained empirically additional empirical research is necessary. Other Related Research Introduction. If additional empirical research is necessary to resolve the controversy, as argued above, a question concerning the nature of the research immediately follows. After reviewing and analyzing eleven frequently cited research efforts—~including two controlled laboratory experiments, one combination questionnaire- simulation experiment, and eight market oriented experiments-Hagerman, Keller, and Petersen in a March, 1973, article published in The Journal Of Accountancy concluded that market oriented studies are preferable to other types of studies.26 Furthermore, these authors must not be alone 141 their opinion, for an increasing number of market oriented research efforts are being conducted and published.27 In this context, then, tell selected market oriented research efforts, the results of which hears a direct bearing on the research design to be developed in the n 26Robert L. Hagerman, Thomas F. Keller, and Russel J. Petersen, Accounting Research and Accounting Principles," The Journal of Accountanc! (March, 1973). pp. 51—55. " 27For examples examine issues of the Accounting Review and Journal Of Accounting Research from 1968 forward. 18 next two chapters, are reviewed briefly below.28 Note, however, the emphasis on briefly. The reviews are not intended to be detailed cri— tiques; indeed, the purpose of this section is not to criticize selected scholarly research efforts, but rather to emphasize the impli— cation of the research results for the methodological design of any subsequent market oriented research. The Review. King argued that a significant portion of the price movement associated with any individual security can be attributed to the effect of market wide influences and industry wide influences.29 He used what he called a "quick and dirty" form of factor analysis on the price behavior of sixty—three securities continuously listed on the New York Stock Exchange from June, 1927, through December, 1960, to test his argument. And, indeed, he found that for his sample for the time period examined that about half of individual security price move- ment can be attributed to market and industry wide influences. However, he also found that market and industry influences apparently decreased over time and concluded: 28Market oriented studies are, in general, those studies which attempt to draw inferences about a research issue based on an exami— Iflltion of security price histories and/or volume of shares traded 1iii—stories. They are based on the assumption that security prices fully ?efflect all publicly available information and that security prices JJIStantaneously and unbiasedly adjust for any new information which becomes publicly available. (See Chapter III for more discussion.) Ho‘uwor, even though market oriented studies are based on such an aBemmption, it should be mentioned that an impressive amount of research }“is been done to test the assumption. The results of this extensive l'-'esea:rch almost uniformly support the reasonableness of the assumption. See Eugene F. Fama, "Efficient Capital Markets: A Review of Theory 3:33 Empirical Work," The Journal of Finance, XXV (May, 1970), pp. 383- 7. 29Benjamin F. King, "Market and Industry Factors in Stock Price nighavior,” The Journal of Business, mix (January, 1966), pp. 139- 0. 19 ". . . the apparent diminution of the influence of the market implies an increase in relative importance of the unique parts of the variances, or at least those parts that are e33c81ained by factors in addition to market and industry." Sharpe's 1963 extension of the pioneering work of Markowitz on portfolio analysis suggested a relatively simple manner of adjusting for or eliminating the market and/or industry effects on security price changes, found by King above, so that the unique elements of price change, as King called them, could be studied.31 This adjustment technique involved the following steps: (1) Estimate the coefficients AJ. and Bj in the simple regression model below using data on both sides of (i.e. before and after) the study or examination period: P =A +B.M +R. 3t 3 at at S + D. Where P jt = ln(—g-t—'E); jt-l Sjt = the closing price of the jth stock at the end of period t; D. t = the dividend on the jth stock during the period the J stock went ex dividend; Nt Mt = ln(N ); t—l Nt = the closing value of some market and/or industry index of period t; and Rjt = the unique part of Pjt' \______ 3°Ibid., p. 157. 3liliiLlialm F. Sharpe, “A Simplified Model for Portfolio Analysis," Hm ement Science, IX (January, 1963 , pp. 277-293; and Harry M. Herfiowitz, Portfolio Selection Efficient Diversification of Invest- ments (New York, 1959). t 20 (2) Using the estimates of A and Bj from step (1) and the data J from the examination period, the unique element of security j price change in examination period t is identified for study by solving the equation below for Rjt: R =P —A.-eM it it J J t where R3 t = the unique element of P j t for security j in the examination period t; S + D. Pjt = 1n(—-g-E—AE); jt—l S't = the closing price of the jth stock at the end of the J examination period t; DJ t = the dividend on the jth stock if the stock went ex dividend during the examination period; N Mt = ln(N—t—); t-l and Nt = the closing value of some market and/or industry index of the examination period t. Fama, Fisher, Jensen, and Roll, in a paper directed principally at a study of common stock price response to stock splits, went to Considerable effort to evaluate the above Sharpe model for general market effect adjustment.32 They did so essentially by using the Sharpe nloclel to adjust for the general market effect on a sample of forty— seven securities during the period January, 1927, through December, 1959, and then observing the statistical properties of the residuals 01‘ unique elements of price change. They concluded: 3:Zlifugene F. Fama, et al., "The Adjustment of Stock Prices to New Information,“ International Economic Review, X (February, 1969), pp. 1- 21. 21 “In sum we find that regressions of security returns on market returns over time are a satisfactory method for abstracting from the effects of general market conditions on the monthly rates of return on individual securities."33 Beaver attempted to determine if the information content of annual earnings announcements is useful to investors. He argued that if the information content of annual earnings announcements is useful to inves- tors, then, the market response of investors in the earnings announce— ment week should be greater than the average response in the eight Inreceding and eight succeeding nonreport weeks. Responses were measured irr two forms: percentage price change and percentage volume of shares ‘trraded, each adjusted via the Sharpe technique for the market effect fkrund by King above. He tested his argument on a sample of 1A3 firms oxrer the period 1961 through 1965 selected on the basis of six criteria: "(1) The firm must be on the COMPUSTAT tape; (2) the firm must be a member of the New York Stock Exchange; (3) the fiscal year must end on a date other than December 31; (A) no dividends were announced in the same week as the earnings an- nouncement; (5) no stock splits were announced during the 17 week period surrounding the announcement of earnings; and (6) there were less than 20 news announcements per year appearing in the Wall Street Journal.” 115—8 statistical results dramatically support his argument and he cone <3luuded: "The dramatic price and volume reaction indicates that investors do look directly at reported earnings and do not use other variables to the exclusion of reported earnings. The evidence also indicates that news announcements 33Ibid., p. 7. 3“William H. Beaver, "The Information Content of Annual Earnings ‘Announcements," nnpirical Research in Accounting: Selected Studies, .1268, a Supplement to Volume of the Journal of Accounti Research, 13p. 67-107. 35Ihiu., p. 70. 22 occurring prior to the earnings report do not entirelyfi> preempt the information content of reported earnings." May used Beaver's methodology above, with investor response measured only as price change, in an attempt to determine if the infor— mation content of quarterly earnings announcements is useful to inves— tors.37 His study, however, was based on a sample of American Stock Exchange firms because American Stock Exchange firms typically have fewer news releases in any arbitrary period of time than New York Stock Ebcchange firms. He concluded in a fashion similar to Beaver; i.e. that investors do respond directly to reported earnings, in his case quar— terly earnings, and that the information content of quarterly earnings announcements is not entirely foreshadowed by competing and prior news announcements. He further concluded, on the basis of some additional empirical testing, that the five trading days immediately following a cIllalrterly earnings announcement is a sufficiently long time, if not the Optimal time, over which to observe investors' reactions to the infor- Inattion content of a quarterly earnings announcement. Ball and Brown, at about the same time Beaver was doing his I‘eSearch above on the impact of annual earnings announcements on invest— ment decisions, attempted to evaluate not only the impact but also the timeliness of annual earnings announcements with respect to investment de(kisions.38 To do so they used a sample of 261 firms whose (1) y.— 361bido, p. 81+. 37Robert George May, "An Empirical Evaluation of the Significance or Quarterly Accounting Data in Investor Decision Making" (unpublished P114). dissertation, Michigan State University, 1970). Bailey Ball and Philip Brown, "An Empirical Evaluation of Account- ing Income Numbers," Journal of Accounting Research, VI (Autumn, 1968), Pp. 159—177. 23 earnings data was available on COMPUSTAT tapes for each of the years 19h6—1966, (2) fiscal year ended December 31, (3) price data was avail- able on CRSP (Center for Research on Security Prices) tapes for at least 100 months, and (A) annual earnings announcement dates were available by reference to the Wall Street Journal. The first step of their research methodology involved forecasting earnings for these firms, grouping the firms on the basis of the forecast error sign, and then observing in retrospect the signed pattern of the monthly price changes of the firm groups for the forecast year (with all data being net of any general market effect). The second step of their research methodology involved, in essence, comparing the price changes of all firms in the annual earnings announcement month with the yearly price Changes of all firms (where the yearly price change was measured over 'the twelve months of which the annual earnings announcement month was the last). Their findings were as follows: (1) ". . . the information contained in the annual income number is useful in that if actual income differs from expected income, the market typically has reacted in the same direction. (2) “However, most of the information contained in reported income is anticipated by the market before the annual report is released. (3) "About 75 per cent . . . of the value of all informa- tion appears to be offsetting, which in turn implies that about 25 per cent persists. (A) ”Of the 25 per cent which persists, about half . . . can be associated with the information contained in reported income. (5) "0f the value of information contained in reported income, no more than about 10 to 15 per cent . . . has not been anticipated by the month of the report. 2L, and (6) I'The value of information conveyed by the income number at the time of its release constitutes, on average, only 20 per cent . . . of the value of all information coating to the market in that month."39 However, even Ball and Brown admit that findings (3), (1+), (5), and (6) above are due in large part, if not in total, to the existence of competing new publicly available information about a firm frequently entering the market throughout a firm's fiscal year. Therefore, to amplify the value of and, consequently, the response to earnings announcement data immediately following an earnings announcement, com- peting new publicly available invormation about a firm must be controlled between earnings announcements, as Beaver above attempted to do, in part, by selecting for study only those firms with 20 or less news releases during the examination year. Beaver and Dukes used the Ball and Brown methodology (with minor variation) without controlling for competing information sources in an attempt to determine whether the "unexpected" portion of income when using interperiod tax allocation or income determined without inter— Period tax allocation, or "unexpected'' cash flow (defined as earnings before tax allocation plus depreciation, depletion and amortization) reIDOI‘ted via the annual earnings armouncement was most closely asso- ciated with price changes.’+0 Both unexpected income and cash flow were determined under five different forecast models. They assumed that the “neXpected income or cash flow variable above most closely associated with price changes was the variable with the greatest usefulness for ‘— 39Ibid., pp. 169—176. hoflilliam H. Beaver and Roland E. Dukes, ”Interperiod Tax Allo— cation, Earnings Expectations, and the Behavior of Security Prices," .The Accounti_ng Review, XLVII (April, 1972), pp. 320—332. \s 0 1'11 . :I'Ih 25 the aggregate of investors and sirrdlarly for the associated total income or cash flow concept. The sample of firms on which the study was based consisted of ". . . 123 NYSE Compustat firms whose fiscal year end was December 31 and whose methods of depreciation for tax and for reporting purposes could be identified . . ."l‘ for the years 1963 through 1967. Their results indicated the following ranking of the three accounting variables: (1) income determined using interperiod tax allocation, (2) income determined without interperiod tax allocation, and (3) cash flow. It should also be mentioned, although Beaver and Dukes did not, that a close examination of the statistics for what they referred to as their "best" forecast models and accounting variables would imply, in part, I ‘ a confirmation of the Ball and Brown results above, particularly Ball and Brown results (1) and (2). Benston attempted primarily to determine whether the following tlrpes of information were of importance to a large number of investors as measured by their market price response: (1) current period measure- ments of net sales; net income before depreciation, amortization, income taxes, and nonrecurring items; net income before nonrecurring exZpense or income; net income net of tax before nonrecurring expense ,7 or income; and net income; and (2) prior period measurements of each ‘ 0f the income variables in (1) such as are frequently reported in the . \_—.—_————— hillbido, p. 3260 26 ten or twenty year summaries of annual reports.42 He used as his sample the intersection of firms on the CRSP and COMPUSTAT tapes. He used five different multiple regression models to analyze the data. The models differed primarily in terms of the assumptions about how inves- tors use accounting data. Each model was of the general form: where P't = stock prices of the common shares of company j in J period t, Ajt = published accounting data of company j in period t, when the data became 'known'. . ., D distribution to stockholders of company j of assets or claims over assets (such as cash dividends) during period t, jt (Stat = changes in dividends of company j in period t, that affect investors' expectations, (SMt = changes in general market conditions in period t, that affect the market valuations of companies during this period, information that affects the market valuations of all firms in a given industry, K, that becomes 'known' in period t, IKt th = economic income generated by the assets of the company j ‘during period t, that change the present value of the company, 81nd U other information about company j that becomes 'knzgn' ll 3t in period t that affects investors' expectations Benston concluded, in part, from his extensive study that ". . . the iJlformation contained in published accounting reports is a relatively hzbeorge J. Benston, “Published Corporate Accounting Data and stock Prices," 'rical Research in Accounti : Selected Studies, JEEQZ, a Supplement to Volume 5 of the Journal of Accounti Research, pp. 1-51;. ABIbido' P. 1+. a’ .nl o v 'v- \a. 3. ~..‘ 27 small portion of the information used by investors"hh and that ”within this limited use, it appears that . . . the information is used prima— #5 rily in the period in which it is made public. . . ." However as with the Ball and Brown study above, part of Benston's results are due to the existence of competing information, control for which should amplify the importance of, and consequent response to published accounting data. But it also would appear that such control is only necessary within close time proximity of the announcement date of any new information to which one wishes to measure investors' responses(s). Gonedes attempted to determine whether the following accounting variables reported in the annual earnings announcement had an impact on investors' decisions during the period 1947 through 1966: (1) net income/common equity, (2) current assets/total assets, (3) total debt/ total assets, and (h) net income/sales.)+6 He tested investors' reac- tiorm to these data using the eighty firm intersection of COMPUSTAT and CRSP firms during the period 1947 through 1966 and three reaction "Kniels: (1) a linear model, (2) a disjunctive model, and (3) a COD! Junctive model. A linear model assumes that a low impact with respect tO <3ne ratio may be compensated for by a high impact with respect to al’lo‘ther ratio. A disjunctive model assumes that high impact ratios dknninate low impact ratios and high impact ratios are those in which “‘Ibid. , p. 28. ”fluid. héNicholas J. Gonedes, "Some Evidence on Investor Actions and Accounting Messages—Part I," The Accounti Review, XLVI (April, 1971), ‘Pp. 320-328; and Nicholas J. Gonedes, "Some Evidence on Investor Actions and Accounting Messages——Part II," The Accounti Review, XLVI (July, 1971). pp. 535-551. 28 large differences between expected and reported ratios exist. A conjunctive model also assumes that high impact ratios dominate low impact ratios, but high impact ratios are those in which small differ- ences between expected and reported ratios exist. He concluded from his analysis: ". . . All or virtually all of the impact on investors' action that is associated with the contents of annual accounting reports precedes the period during which the report is issued and the three-month period prior to the period during which the annual report is issued, i.e., the time period encompassed by our tests. "The model that we employed in order to secure surrogates of investors' expectations with respect to accounting data does not allow for adjustments of investors' expectations in response to messages and events that appear before the time periods encompassed by our tests (e.g., quarterly accounting reports, messages prepared by brokerage houses, and economic events). Such messages and events may facili- tate investors' anticipatory behavior vis a via the contents of annual accounting reports. Evidently, adjustments in investors' expectations occur more frequently than the frequency of adjustment permitted by the design of our tests, tests that ignore interim messages and focus upon annual accounting messages. It appears that any changes in inves— tors' expectations associated with the contents of annual accounting messages are impounded in investors' networks of beliefs and expectations before the test period of our analysis. “Note that the above interpretation is consistent with the existence of sources of information that compete with the accounting process qua a supplier of information. Thus, the annual accounting report may have no impact on investors' expectations because of: (1) accounting reports other than the annual report (e.g. quarterly reports) and (2) informa- tion provided by sources that compete with thfi accounting process in its role of information supplier.‘I 7 Tile implication of these results and conclusions on market based re- search designs are the same as those for Ball and Brown, Beaver and Ihlkes, and Benston above: To amplify the value of and, consequently, \—————_— AqGonedes, pp. 5h9—550. 29 the response to earnings announcement data, competing new publicly available information about a firm must be controlled. Baskin attempted to determine whether consistency exceptions reported in the auditor's certificate, an integral part of the annual report financial statements (not the annual earnings announcement), had an effect on investors' decisions in 1965 through 1968.1+8 He selected three samples of firms from the American Institute of Certified Public Accountants' annual publication.Accounting Trends and Techniques. The first sample, a control group, made no accounting changes in the report period, and, consequently, were not subject to a consistency exception. The second sample, experimental group I, made accounting changes in the report period but notified investors of the change (i.e. inconsistency) at the time of the annual earnings announcement as well as at the time of annual report release. The third sample, fnqperimental group II, made accounting changes in the report period and notified investors only at the time of annual report release. Baskin aI‘gued that ”. . . firms without accounting principle changes and firms notifying investors of their accounting changes at annual earnings announcement date report no 'new' information, ceteris paribus, at annual report date. But firms that notify investors about their accounting principle changes in their annual reports rather than in earnings announcements divulge 'new information.""+9 Accordingly he argued that the reaction of investors to annual reports (If experimental group II should be different than the reactions of \ thlba F. Baskin, "The Communicative Effectiveness of Consistency Esameptions,” The Accounting Review, XLVII (January, 1972), pp. 38- 1. “9mm. , p. at. V 30 investors to the annual reports of experimental group I and the control group whereas reactions of investors to the earnings announcements should be the same for experimental group II and the control group but different for experimental group I. He concluded from his data analysis that ”. . . the consistency exception Opinion [in the annual report] does not appear to have infor- mation content for most investors."5O However, he further pointed out that when the consistency exception for experimental group II involved a large dollar effect the limited (not statistically significant) reaction by investors at annual report date was larger than when the consistency exception involved only a small dollar effect. Presumably investors react to the majority of accounting information at earnings announcement date rather than at annual report date and any response at annual report date is elicited only by large inconsistencies with the earnings announcement data. Conclusions A controversy exists over the question of whether the cost method (If accounting for a corporation's long-term investments in common stock ‘Jf other corporations is better than the equity method of accounting ier a corporation's long-term investments in common stock of other ("erorations. In the Opinion of some accountants the controversy E3‘IXists because of insufficient empirical research addressing the contro— “Versy. Furthermore, some accountants are of the Opinion that the iresearch necessary to resolve the controversy should be market based. SQIbid., p. 50. 31 In this vein ten market based research efforts, the results of which have implications for the design of market based research, were reviewed. The implications of these research efforts for subsequent market based research efforts were: (1) Investors' market based responses to accounting data must be adjusted for general market influences if the unique elements are to be studied; (2) This adjustment can be accomplished effectively with the Sharpe model; (3) Investors' market based responses to accounting data may be studied in the five trading days immediately following an earnings announcement but may not be effectively studied in a corresponding period following the publication of the annual report; and (A) To amplify the importance of, and, consequent response to accounting data reported via the earnings announcement, competing iJIformation releases must be controlled but the control need only be Inade for competing information releases within relatively near time Proximity of the earnings announcement. CHAPTER III METHODOLOGY--CONCEPTUAL CONSIDERATIONS The Efficient Market Theory There is in existence a large bank of research evidence to support what is referred to in the literature of finance as the semi-strong form of the theory of efficient markets.1 This rather well developed theory is that existing security market prices fully reflect all existing publicly available information and that the security market instanta- neously and unbiasedly adjusts these prices for any new information made publicly available.2 3 Operationally, "instantaneous adjustment” is a random variable. The value of the random variable for any given security is the time nmmoo mo Hm>cq m.nccm< pcmocommocH as new soapm>nmmoo mo Ho>cq .mp0pmm>cH IlGOflpw>hmmoo no ch>mA pcopmmmflm 039 Eoum_cOHpmsam>m pom soapmshomcH mo prmsonom on oncomcsnoo mcmeHpmm one .H enemas .mwcflcnmo mo pdcocoo pecan op mmcflchmo oophomoh anommcmsp mnopmmth ** .mmcficnmo mo vdcocoo m.nopmo>cw can J D qm as as me o a mq _ _ mead H _ AAOH>mnmm hopmo>cH _ . stonoo 8. 323a. 65 _ .ul _ u _ xom xomam _ _ _ 8 so an E. _ o u an? _ mafia H iLW _ _ N<. Geno Hammad _ once mH H¢_ _ m.:.|.|l _ cosmflomm_ _ coseOo “ _ u _ 8 can «We a Oncucoz ma HMO mm 0 pm fisvo hpcfimphoo mmeHpmc whopmmth .x. mommmoonm comfiamQEOo mmcflchmm new cessapmm mmcflcamm m.aopmm>sH poops soap Im>ncmoo mo Hm>mq m.pcmm< eccoccdmocH mommooonm comflhmasoo mmcflcnmm now opmeapmm mmcflchwm adonm soapm>hcmoo no .859 .mhovm®>flH 39 plus F2 EA at Q0 resulted in an imerfect CE, and all other things were equal.) Furthermore, since the certainty equivalent estimate of Ql earnings for F1 was perfect, there is no stimulus at the end of 01 for investors to revise certainty equivalent estimates of net earnings for subsequent F1 quarters.20 If the certainty equivalent estimates of net earnings for subsequent F1 quarters are not revised, then the instantaneous, unbiased price adjustment for the F1 quarterly earnings announcement released at the end of Ql is zero. In contrast, since the certainty equivalent estimate of 01 earnings for F2 was imperfect, there is a stimulus at the end of Q1 for investors to revise certainty equivalent estimates of net earnings for subsequent F2 quarters. FUrthermore, Weston and Brigham suggest, implicitly, and Francis cites evidence that all certainty equivalent estimates of net earnings for subsequent F2 quarters will be revised in the same direction, the direc— ‘tion corresponding to the directional difference between the transformed reported Q1 earnings and the certainty equivalent estimate of Q1 earnings for F2.22 If the certainty equivalent estimates of net 20Daryl J. Bem, Beliefs, Attitude_s_L and Human Affairs (Belmont, 1970), p. 24. Bem argues and presents evidence that ". . . men possess a drive toward cognitive consistency, and that, therefore inconsistency acts as an irritant or stimulus which motivates individuals to change their beliefs. . ." If inconsistency does not exist, then presumably Peliefs will not change. In the situation under consideration above, inconsistency does not exist (expected and transformed reported earnings Correspond exactly), therefore subsequent earnings expectations beliefs) should not change. 21Ibid. In this situation inconsistency does exist (expected and transformed reported earnings do not correspond), therefore subsequent ea~?l:'nings expectations (beliefs) should change. F . 22J. Fred Weston and Eugene F. Brigham, Essentials of Managerial lAlnance (Dallas, 1968), p. 238; and Jack Clark Francis, Investments: @ysm and Management (St. Louis, 1972), p. 333. 4O earnings for subsequent F2 quarters are revised as suggested, then the instantaneous, unbiased price adjustment for the F2 quarterly earnings announcement released at the end of 01 is nonzero. Generalizing, under the conditions assumed above, the smaller the price adjustment immediately following a quarterly earnings announcement, the greater the usefulness potential of the output of an accounting method to investors. However, this generalization needs to be quali- fied slightly. The argument above implicitly assumes that all investors experience the same earnings expectational change. This is highly unlikely. It is more likely that investors will experience different earnings expectational changes. If investors do experience different expectational changes, then the observed price change is an average response (discussed in more detail in the next section). ‘When the observed price change is recognized as an average response the gener- alization becomes as follows: The smaller the price adjustment immedi— ately following a quarterly earnings announcement, the greater the usefulness potential of the output of an accounting method to investors on the average. An interesting implication of the above argument is that under the assumed ceteris paribus conditions (i.e., that F1 and F2 are identical except that F1 uses A1 and F2 uses A2) and investor rationality if A1 ' provides a smoother contribution to reported earnings than A2, then A1 provides data with greater usefulness potential on average than A2 because the difference between expected and transformed reported earnp ings will be minimized. However, one should not make more of this inplication than is intended. It is not, for example, an argument in favor of ”smoothing" or ”managing" earnings in the sense that these #1 terms are generally used in the accounting literature. These terms, as generally used, denote the manipulation of reported earnings by changing accounting methodologies from period to period to produce a ”smooth” earnings trend.23 The argument above, on the other hand, is based on the assumption of consistent use of a chosen accounting methodology or set of methodologies from period to period and is that, assuming consis— tent use, the methodology or set of methodologies providing the smoothest contribution to reported earnings is the best or has the greatest usefulness potential for investors. Finally, the generalization above, resulting from the reasoning depicted in Figure 1, appears to be in conflict with the research of Beaver and.Dukes reviewed in Chapter II.25 However, reconciliation can be obtained. Although not emphasized in the Chapter II review, because it was not important for the purpose intended by that review, Beaver and Dukes made the following two critical assumptions: (1) Investors on average are able to make the appropriate (or at least approximately appropriate) transformation from one accounting measurement (accounting method 23See for example, M. J. Gordon, "Postulates, Principles and Research in.Accounting,” The Accounting Review, XXXIX (April, 1964), pp. 261-262; and Russell M. Barefield and Eugene E. Comiskey, "The Smoothing Hypothesis: An.Alternative Test,” The Accounting Review, 2[Within this implication is a suggestion for an alternative research methodology for the issue under consideration in this research project as well as an additional research project to determine if smooth earnings trends really do elicit smooth price behavior, both of which are beyond the sc0pe of this thesis. See the section entitled ”Suggestions for Further Research” in Chapter V. 25William H. Beaver and Roland.E. Dukes, “Interperiod Tax Alloca- tion, Earnings Expectations, and the Behavior of Security Prices," The Accountinijeview, XLVII (April, 1972), pp. 320—332. A2 output) to alternative accounting measurements?6 and (2) Investors on average are omniscient to the extent that they know and will use the alternative measurement in (1) which is most useful.27 Using five different earnings expectational models and Sharpe's market return model,28 they, then, examined the relationship between the unexpected behavior of various earnings measurements (really earnings and cash flow measurements) and an index of the behavior of associated security returns (prices) computed over 12 months, the 11 months preceeding the earnings announcement and the earnings announcement month. They cone tended that the earnings measurement whose unexpected portion demon- strated the highest positive algebraic sign correlation with the index of unexpected security return behavior was the measurement most used and consequently the measurement most useful to investors on average.29 However, this contention is critically dependent upon the above assump- tions. Now to begin reconciliation of the apparent conflict, relax assumption (2). Then, since investors are not presumed necessarily to use the most useful measurement, from the correlation analysis it can only be said that the earnings measurement whose unexpected portion demonstrates the highest positive correlation with the indexof unex- pected security return behavior is simply the measurement most used. However, if the index magnitude is examined it can be said ex post that 261bid., p. 320. 271bido, p. 3210 28William F. Sharpe, "A Simplified Model for Portfolio Analysis," Management Science, IX (January, 1963), pp. 277-293. 29Beaver and Dukes, p. 321 and pp. 331-332. #3 the accounting measurement associated with the smallest absolute index value was the most useful on average since the index is an indicator of unexpected return, itself presumably a function of unexpected earnings, and minimization of unexpected earnings presumably indicates greater usefulness of estimation data inputs than maximization of unexpected earnings. This is particularly true when as in the Figure 1 reasoning no events (news releases, etc.) specific to the security other than the earnings announcements are allowed to influence the security's :return behavior for, as Ball and Brown point out, in that situation the index used by Beaver and Dukes is expected to be affected only, or at least only appreciably affected, by the security return behavior in the month of earnings announcement.30 Furthermore, the inference resulting :firom.an.examination of the index magnitudes just described can also be made in the absence of assumption (1) above if investors can be iden- tified as using alternative measurements associated with different securities, and in the absence of any assumed earnings expectational mOdels as well. To summarize, Beaver and Dukes made two critical assumptions: (1) Investors on average are able to make the appropriate transformation from one accounting measurement to alternative accounting measurements; and (2) Investors on average are omniscient to the extent that they know and will use the alternative measurement in (1) which is most useful. When these assumptions are relaxed and the Beaver-Dukes model reexamined with the measurement of usefulness in mind the apparent conflict \ 1 30Ray Ball and Phillip Brown, "An Erupirical Evaluation of Account- 11g Income Numbers,” Journal of AccountingResearch, VI (Autumn, 1968), ’ 16A. AA disappears, for then, it can be said from their model that the account- ing measurement associated with the smallest security return index value is the most useful on average as it has been said from the Figure 1 reasoning—~the accounting measurement associated with the smallest price change (return) is the most useful on average. Extending the Conceptual Framework to Volume Measures The conceptual framework develOped above is couched in terms of observing investors' reactions to new information as price changes. However, one can also observe investors' reactions as the volume of 31 shares traded. In fact, at least one researcher has argued that the volume of shares traded may be a more sensitive measure of individual investors' reactions than is price change, while price change is a more sensitive measure of the total market reaction (reaction of investors 32 in the aggregate) than is volume of shares traded. He argues as follows: "An important distinction between the price and volume tests is that the former reflects changes in the expectations of the market as a whole while the latter reflects changes in the expectations of individual investors. A piece of infor- mation may be neutral in the sense of not changing the expectations of the market as a whole but it may greatly alter the eXpectations of individuals. In this situation, there would be no price reaction, but there would be shifts in portfolio positions reflected in the volume."3 1 3 William H. Beaver, "The Information Content of Annual Earnings Announcements," Empirical Research in Accounting: Selected Studies, 1968, a Supplement to Volume 6 of the Journal of Accounting Research, pp. 67-101. 321bid., p. 69—70. 33Ibid. #5 This argument, implicitly, but accurately, indicates that price change is a reflection of the market's average earnings expectational change. But many different distributions of individual investors' earnings expectational changes may result in the same average (or market) earn~ ings expectational change. TWO such distributions are illustrated in Figure 2 below. Number of Investors Experiencing a Particular Expectational Change Distribution 1 ‘\\\\\\‘\\_‘ Distribution 2 r--—--—- Lit Continuum of Mean.(Average) Possible Earnings Expectational Change Expectational (Uniquely associated with Changes the observed price change) Figure 2. Illustrative Earnings Expectational Change DistributionsBL’ It should be obvious that the degree of consensus about earnings expectational changes is greater if individual investors' earnings expectational changes are described by distribution 1 than if they are described by distribution 2. 3L'Notice that the peak of distribution 1 is at a higher frequency than the peak of distribution 2. The reason for this phenomenon is the implicit assumption that the sum of investors associated with distri- bution 1 is the same as the sum of investors associated with distri- bution 2. Furthermore, this assumption would appear reasonable, even in the real world, since all market participants (investors) are potenp tial buyers or sellers of any given security. #6 Now assume that all investors who experience earnings expectational changes different than the mean earnings expectational change adjust their portfolio position by buying or selling the security.35 If the common stock market is a market of many small investors each holding or wishing to hold the same number of shares of the security, then, the volume of shares traded would be smaller if the distribution of indi- vidual investors' earnings expectational changes were described by distribution 1 than if it were described by distribution 2. (Small investors and large investors are defined in the microeconomic sense. Small investors are those who hold or desire to hold securities of a sufficiently small number as to render them unable to independently affect the security price. Large investors, in contrast, are those whose holdings or desired holdings render them able to independently )36 affect a security price. The number of investors holding their portfolio positions in distribution 1 is larger than in distribution 2 35This would probably not occur in the real world. A more likely situation would be that investors experiencing earnings expectational changes in a small range around the mean earnings expectational change would hold their portfolio positions, whether that be as a holder or nonholder of the security. An example of such a range is illustrated in Figure 2 as R. The assumption above, made for the sake of illu- stration, is simply that this range is zero. 36The composition of the market in terms of small versus large investors is one reason the American Stock Exchange is used in this research effort rather than the New York Stock Exchange. See the sec- tion entitled ”Selection Criteria Implied by the Ideal Conditions” in Chapter IV. A Wall Street Journal article of May 23, 1973, reports that ”. . . individual investors make up 80% of AMEX volume.” (See Richard E. Rustin, ”AMEX Board Divided on Whether to Follow Big Board for General Broker—Fee Rise,” Wall Street Journal, May 23, 1973, p. A.) Also notice that the assumption that all small investors hold or wish to hold the same number of shares of the security is stricter than necessary. The necessary assumption is that the shares held or desired by investors with expectational changes to the left of the mean expectational change are the same as those to the right of the mean. 47 leaving fewer shares to be traded in distribution 1 than in distribu- tion 2. In this vein, the following generalization is made: The smaller the volume of shares traded immediately following a quarterly earnings announcement, the greater the degree of consensus regarding expectational changes, and, consequently, the greater the degree of consensus among investors regarding the usefulness potential of an accounting method output. Interpreting Price Change Measprements and Volume of Shares Traded Measurements Together In preceding paragraphs two forms of investor response measurements were discussed. These two response measurement forms were, respec- tively, price change and volume of shares traded. It was argued, under a set of very strict conditions that, of two alternative accounting methods' outputs, the output associated with the smaller price change immediately following a quarterly earnings announcement has the greater usefulness potential for investors on the average; and the output asso- ciated with the smaller volume of shares traded immediately following a quarterly earnings announcement is the output for which there is greater consensus among investors regarding the output's usefulness potential. Now if either of these two measurement form comparisons are used inde- pendently in evaluating two alternative accounting methods' outputs (A1 and A2), three possible results exist. The price changes asso- ciated with A1 and A2 could be equal; the price change associated with A1 could be greater than the price change associated with A2; and the price change associated with A1 could be smaller than the price change associated with A2. Entirely analogous results could exist for the volume of shares traded measurement form comparisons. But when the A8 two measurement form comparisons are considered together nine possible result combinations exist. These nine possible result combinations are arrayed in Table 3. Each possible combination is numbered in Table 3 and discussed below with reference to its table number. TABLE 3 POSSIBLE COMBINATIONS OF RESULTS OF PRICE CHANGE COMPARISONS AND VOLUME OF SHARES TRADED COMPARISONS Possible Results of Volume of Shares Possible Results of Price Traded Comparisons Change Comparisons VA1 = VA2 VAl > VA2 VA1'< VA2 A PAl = A PA2 Comblilatlon Comblgatlon Comblgatlon A PAl > A P A2 Comblzatlon Comblglatlon Combigation _ A P A1 < A P A2 Comblpatlon Comblrelatlon Comblgatlon Combination 1. The results designated combination 1 are displayed schematically in Figure 3. The figure indicates that Al and A2 outputs have the same usefulness potentials for investors, on average, and that the degree of consensus regarding the usefulness potentials of A1 and A2 outputs are similar. In the event that this combination of response comparisons is obtained, the evidence would indicate that the choice between using A1 or using A2 is of no consequence to investors. 49 Number of Investors Experiencing a Particular Expectational Change Distribution associated with both A1 and A2 L I Continuum of Possible Mean (Average) Expectational Expectational Changes Change (Uniquely associated - with the observed price change for both A1 and A2) Figure 3. Possible Results of Comparisons——Combination 1 Schematic Combination 2. Combination 2 is illustrated in Figure A. Since the observed price changes associated witthl and A2, in this situation, are equal, apparently the outputs of A1 and A2 have equal usefulness potentials for investors on average. In contrast since the expecta- tional changes associated with A2 are less widely dispersed than those associated with A1, apparently there is greater consensus among inves- tors regarding the usefulness potential of A2 outputs than there is regarding A1 outputs. Now, certeris paribus, greater consensus appears more desirable than less consensus. Therefore, in this situation, the evidence would appear to indicate that accounting method A2 should be used rather than accounting method A1. 50 Number of Investors Experiencing a Particular Expectational Change Distribution associated with A2 Distribution associated with A1 \\\\\\\“~— Continuum of Possible Mean (Average) Expectational Expectational Changes Change (Uniquely associated with the observed rice change for both A1 and A2‘ ‘b--—— Figure A. Possible Results of Comparisons-—Combination 2 Schematic Combination_3. Figure 5 illustrates the situation labeled combi- nation 3. This situation, its analysis, and the resulting conclusion are entirely analogous to combination 2 except that Al and A2 are interchanged. Therefore only the conclusion for this situation is set forth: The evidence would appear to indicate that accounting method A1 should be used rather than accounting method A2. 51 Number of Investors Experiencing a Particular Expectational Change Distribution associated with A1 Distribution associated with A2 \\\\\\““—‘ Continuum of‘Possible Mean (Average) Expectational Expectational Changes Change (Uniquely associated with the observed price change for both A1 and A2) u----- Figure 5. Possible Results of Comparisons——Combination 3 Schematic Combination A. Combination A exists if the price change associated with A2 is less than the price change associated with A1 whereas the volume of shares traded associated with A1 is equal to the volume of shares traded associated with A2. This is depicted in terms of inves- tors' expectational change distributions in Figure 6 and would appear to indicate that accounting method A2 should be used rather than accounting method A1 since on average A2 outputs have greater usefulness potential than A1 outputs, as indicated by the comparative price changes while the degree of investor consensus regarding the usefulness potenr tials of the outputs is equal, as indicated by the comparative volume measurements. 52 Number of Investors Experiencing a Particular Expectational Change Distribution associated with A2 Distribution associated with A1 qp-———--— q-—-’--——--- Continuum of Possible Mean (Average) Mean (Average) Expectational Changes Expectational Change Expectational Change (Uniquely associated (Uniquely associated with observed price with observed price change for A2) change for A1 Figure 6. Possible Results of Comparisons-—Combination A Schematic Combination 5. The results designated combination 5 are displayed schematically in Figure 7. The figure indicates that A2 outputs have greater usefulness potential for investors, on average, than A1 outputs. Furthermore, the figure indicates a greater degree of consensus among investors regarding the usefulness potential of A2 outputs than of A1 outputs. The evidence, then, would appear to indicate that when faced with a choice between using accounting method A1 or using account— ing method A2, accounting method A2 should be chosen. 53 Number of Investors Experiencing a Particular Expectational Change Distribution associated with A2 Distribution associated with A1 qb-—--~—- I I I I L . Continuum of Possible Mean (Average) Mean (Average) Expectational Changes Expectational Change Expectational Change (Uniquely associated (Uniquely associated with observed price with observed price change for A2) change for A1) Figure 7. Possible Results of Comparisons-—Combination 5 Schematic Combination 6. Combination 6 is illustrated in Figure 8. Since the observed price change associated with A2 is smaller than the observed price change associated with.A1, the outputs of A2 apparently have greater usefulness potential for investors, on average, than the outputs of A1. However, since the volume of shares traded associated with A2 is greater than the volume of shares traded associated with A1, there is apparently a smaller degree of consensus among investors regarding the usefulness potential of A2 outputs than there is regard- ing the usefulness potential of A1 outputs. Now it would appear reasonable to assume that both greater usefulness potential and greater consensus among investors regarding usefulness potential are more desirable than lesser usefulness potential and lesser consensus. How& ever, assuming that the usefulness potential measure, i.e. price change, represents the consensus Opinion of a ”substantial" group of investors the American.Accounting Association Committee to Prepare A Statement of 54 Basic Accounting Theogy contends that the usefulness criterion has 37 primacy over all other criteria. Therefore, in this situation it appears that accounting method A2 should be used rather than accounting method Al even though there exists a lesser degree of consensus among investors regarding the usefulness potential of A1 outputs than exists regarding A2 outputs. Number of Investors Experiencing a Particular Expectational Change r Distribution associated with A2 Distribution associated with A1 qp—-—--— 4b-—-— Continuum of Possible Mean (Average) Mean (Average) Expectational Changes Expectational Change Expectational Change (Uniquely associated (Uniquely associated with observed price with observed price change for A2) change for A1) Figure 8. Possible Results of Comparisons-Combination 6 Schematic Combination 7. Combination 7, illustrated in Figure 9, is entirely analogous to combination A with A1 and A2 interchanged. Therefore, only the conclusion is set forth here: It appears that accounting method A1 should be used rather than accounting method A2. 37AmericanAccounting Association, p. 3, p. 22, and p. 2A. 55 Number of Investors Experiencing a Particular Expectational Change Distribution associated with A1 Distribution associated with A2 I l I I I I I I l 1 . % Continuum of Possible Mean (Average) Mean (Average) Expectational Changes Expectational Change Expectational Change (Uniquely associated (Uniquely associated with observed price with observed price change for A1) change for A2) Figure 9. Possible Results of Comparisons-—Combination 7 Schematic Combination 8. The situation designated as combination 8 is depicted schematically in.Figure 10 and is entirely analogous to combi— nation 6 with Al and A2 interchanged. The discussion of combination 6 indicates that the usefulness potential criterion has primacy over all other criteria, and, therefore, in this situation, it appears that accounting method A1 should be used even though the degree of consensus among investors regarding the usefulness potential of A1 outputs is smaller than the degree of consensus regarding the usefulness potential of A2 outputs. 56 Number of Investors Experiencing a Particular Expectational Change Distribution associated with A1 Distribution associated with A2 I I I I I l I . Continuum of Possible Mean (Average) Mean (Average) Expectational Changes Expectational Change Expectational Change (Uniquely associated (Uniquely associated with observed price with observed price change for A1) change for A2) Figure 10. Possible Results of Comparisons-Combination 8 Schematic Combination 9. Finally, Figure 11 illustrates combination 9, a situation entirely analogous to combination 5 with A1 and A2 inter- changed. The conclusion, in the event that combination 9 results are obtained, is that accounting method A1 should be used rather than accounting method A2. 57 Number of Investors Experiencing a Particular EXpectational Change Distribution associated with A1 Distribution associated with A2 --——---- 1 %** Continuum of Possible Mean (Average) Mean (Average) Expectational Changes Expectational Change Expectational Change (Uniquely associated (Uniquely associated with observed price with observed price change for A1) change for A2) Figure 11. Possible Results of Comparisons-—Combination 9 Schematic Summgpy Assuming that a given firm's accounting outputs are used in the prediction of certainty equivalents of that firm's future net earnings which when discounted at the pure rate of interest equal the current share price of that firm's common stock, the usefulness potential of the firm's accounting outputs to investors, defined as the degree to which the outputs aid in the prediction of future earnings certainty equivalents, should be reflected in the firm's common stock price behavior. Specifically, if the certainty equivalent estimates of future net earnings made using accounting outputs at the beginning of period one are perfect, then the earnings reported at the end of period one via the quarterly earnings announcement (assuming no intervening changes in certainty equivalent estimates and transformation of reported earnp ings to correspond with investors' concept of earnings) exactly equal the certainty equivalent estimate of earnings for period one. In this 58 situation, there is no stimulus for revising subsequent earnings cer- tainty equivalent estimates, and, therefore, the expected price adjust- ment at the end of period one is zero. In contrast, if the certainty equivalent estimates of future net earnings made using accounting outputs at the beginning of period one are imperfect, then the earnings reported at the end of period one via the quarterly earnings announce- ment (qualified as above) will not exactly equal the certainty equiva- lent estimate of earnings for period one. In this situation, there is a stimulus for revising subsequent earnings certainty equivalent estimates. If the revisions are all in the same direction, as suggested by Weston and Brigham and Francis, the expected price adjustment immediately following the quarterly earnings announcement released at 38 the end of period one is nonzero. Generalizing, the smaller the price adjustment immediately following a quarterly earnings announcement the greater the usefulness potential of the output of an accounting method to investors on average. When the conceptual framework, initially deveIOped in terms of observing the effect of usefulness potential on common stock price behavior, is extended to observing the effect of usefulness potential on common stock share trading volume, another decision rule results for the behavior of share trading volume. The smaller the volume of shares traded immediately following a quarterly earnings announcement the greater the degree of consensus among investors regarding the usefulness potential of the outputs of an accounting method. 38Weston and Brigham, p. 238; and Francis, p. 333. 59 Finally if greater usefulness potential and greater consensus are regarded as better than lesser usefulness potential and lesser consensus and the two decision rules are used together, the usefulness potential criterion has primacy over the consensus criterion, the consensus criterion essentially being used only in the event that alternative accounting methods' outputs have the same usefulness potential for investors on average. CHAPTER IV METHODOLOGY-APPLICATION CONSIDERATIONS Introduction As stated in Chapter I the primary purpose of this research effort is to provide empirical evidence of whether cost method generated data appears to have more, less, or the same usefulness potential as equity method generated data for investors in corporations with material unconsolidated common stock investments. Under ideal conditions this purpose could be pursued by direct empirical application of the gener- alized decision rules developed in Chapter III. However, ideal conditions do not always exist in the real world. To the extent that real world conditions and ideal conditions are not the same, compensa- tion must be made as much as possible for the difference. Accordingly, in an effort to make possible the pursuit of the primary purpose of this research effort and at the same time make possible a test of the empirical applicability of the Chapter III conceptual framework, several real world application considerations are developed in this chapter, including sample firm selection criteria, adjustment techniques for uncontrollable exogenous influences on investors' market based responses, and a statistical method of comparing investors' market based responses to accounting data. 60 61 Ideal Versus Real World Conditions The ideal conditions under which the decision rules should be applied are specified by the assumptions made in Chapter III. They are: (1) Two alternative accounting methods exist for measuring the same economic event or events. (2) Two identical firms exist, except that one firm uses one of the accounting alternatives in (1) above and the other firm uses the other alternative. (3) At the beginning of the testing period, investors estimate the certainty equivalents of future net earnings for each of the firms, the only difference in the inputs to the estimation process associated with the two firms being that attributable to the two accounting alternatives under consideration. (A) No events occur during the period between quarterly earnings announcements that stimulate investors to alter the estimates made at the beginning of the period. (5) Investors are rational and have no capital constraints. (6) Market participants are small investors rather than large investors. The first ideal condition above is compatible with real world conditions for this research effort. The cost method and the equity method were during the period covered by this research allowable feasible alternative methods of accounting for a corporation's long-term O I O 1 investments in common stock of other corporations. 1See the section in this chapter entitled "Time Period Covered by the Research? for additional discussion. 62 The second ideal condition above is likely not compatible with real world conditions for this research effort. It is, indeed, highly unlikely that two firms exist which are identical except that one firm uses the cost method and the other firm uses the equity method. Two measures will be taken to compensate for the difference between ideal and real world conditions. First, two groups of firms will be used instead of simply two individual firms. The use of two groups of firms as a compensating measure is based on the assumption that whatever the difference between any pair of firms, one from the cost group and one from the equity group, the difference between another pair of firms will counterbalance it, thus resulting in two very similar, even if not identical, groups. Second, in order to minimize the differences between any pair of firms, each firm included in either of these groups will be selected in compliance with a rigorous set of criteria to be discussed later. The third ideal condition above has two parts—~(1) investors estimate the certainty equivalents of future net earnings and transform these estimates into common stock share prices, and (2) the only differ- ence in the inputs to the estimation process associated with the two groups of firms is attributable to the two accounting alternatives under consideration. Part one of this ideal condition is based on the theory of finance and will be assumed to hold.2 Part two of this ideal condi- tion, however, likely is not consistent with real world conditions for 2Jerome B. Cohen and Edward D. Zinbarg, Investment Analysis and Portfolio Management (Homewood, 1967), p. 2A9; James C. T. Mao, Quantitative Analysis of_ Financial‘Decisions (London, 1969), p. A7A; and James C. Van Horne, Financial Management and Policy (Englewood Cliffs, 1968), pp. 66—69. 63 any arbitrary, or randomly chosen, pair of firms. Four measures will be taken to compensate for this inconsistency between ideal and real world conditions. First, as discussed above, two groups of firms will be used. The reason is similar to that already given for using two groups rather than two individual firms. Second, also discussed above, each firm included in either of the groups will be selected in compliance with a rigorous set of criteria. The use of selection criteria as a compensating measure is based on the assumption that if firms are very similar then the inputs to the esti- mation process associated with each firm will be very similar. Since two of the most important inputs to the estimation process are investors' appraisals of profitability and liquidity, the selection criteria will include specifications for both of these areas.3 Third, assuming that the more current information inputs to the estimation process are the more important inputs and consequently that the effect of differences in older information inputs is less than the effect of differences in newer information inputs, each firm included in either of the groups will be one for which no news releases specific to the firm occurred in the quarter immediately preceding the testing A period except the quarterly earnings announcement for that quarter. The result of this proviso is that the most important input to the 3Cohen and Zinbarg, pp. 219-355. hGeorge J. Benston, ”Published Corporate Accounting Data and Stock Prices," Empirical Research in.Accounting;f Selected Studies, 1967, a Supplement to Volume 5 of the Journal of Accounting Research, pp- 1-5h- 6b, estimation process is the quarterly earnings announcement immediately preceding the testing period. Finally, since quarterly earnings announcements result from com- bining outputs of many accounting methods each having a certain useful— ness potential, if firms are also selected such that accounting methods other than the cost method and the equity method are the same for each group, then differences in usefulness potentials of the most important input to the estimation process associated with the firms in each group should be primarily attributable to differences in the usefulness potentials of cost method generated data and equity method generated data.5 Therefore, firms included in either group will be limited to those which use the same accounting method in each of five critical accounting areas (e.g. inventory valuation) and do not disclose by footnote, or otherwise, the results of applying an alternative. This nondisclosure limitation will also be applied to the way firms account for and report the consequences of holding long—term investments in common stock of other firms. sGeorge H. Sorter and Selwyn W. Becker, "Corporate Personality as Reflected in Accounting Decisions: Some Preliminary Findings," in Accountipg and Its Behavioral Implications, William J. Bruns, Jr. and Don T. DeCoster (eds.)—(New'York, 1969), pp. 267-277. Sorter and Becker have suggested that firms may exhibit a personality in their choice of accounting methods. The implication of this suggestion for this research effort is that firms which choose the cost method, generally regarded as more conservative than the equity method, may consistently choose other conservative accounting alternatives. If this situation were to result in this research effort, the two groups of firms might not be similar with respect to other accounting data generating systems and any difference observed in the way investors react to the quarterly earnings announcements of the two groups could not be attributed solely to the differences inherent in the cost and equity methods. To minimize this possibility, firms will be selected for this research effort so that the accounting methods in five critical areas other than the long-term investment accounting area are the same for each group. 65 The fourth ideal condition is that no events occur during the period between quarterly earnings announcements that stimulate inves- tors to alter the estimates made at the beginning of the testing period. Although this ideal condition is probably not entirely com- patible with real world conditions, one measure may be taken to minimize the difference between the ideal condition and real world conditions. This measure is to include only firms in either group which have no news releases specific to the firm during any quarter for which the firm is included except quarterly earnings announcements. By taking this measure the difference which does exist between the ideal condition and the real world conditions may be attributed to a general market effect, i.e. the effect of news releases by any firm on the prices of all other firms, and to the effect of nonppublic information. Techniques used to adjust for these two effects which cannot be controlled will be discussed later in this chapter under the section entitled "Data Adjust— ments.” The fifth ideal condition is that investors are rational and have no capital constraints. That investors are rational in the real world as well as in an ideal one is simply assumed, although the evidence in support of the efficient market theory tends to provide empirical support for the assumption as well.6 The ideal condition that investors have no capital constraints is obviously violated in the real world. The existence of real world capital constraints is directly related to the effect of nonppublic information (each investor's personal capital constraint being one form of non-public information) discussed above. 6‘Eugene‘F. Fama, "Efficient Capital Markets: A Review of Theory and Empirical Work,” The Journal of Finance, XXV (May, 1970), pp. 383- A17. 66 As already indicated, the adjustment for the effect of nonppublic infor- mation will be discussed later in this chapter under the section enti- tled "Data Adjustments." Finally, the sixth ideal condition is that market participants are small investors rather than large investors, small and large being defined in terms of the number of shares held or desired, however, with no precise number or range being designated as the level of distinction. This ideal condition is, at least, approximated in the real world capital market known as the American Stock.Exchange.7 For this reason, as well as others discussed later, firms included in either group will be limited to American Stock Exchange listed firms. Selegtion Criteria Implied by the Ideal Conditions and Procedures for Determining Compliance With TEESe‘Criteria The discussion above indicates that firms (or more properly firm quarters) included in this research effort will be selected in accord— ance with the following set of criteria: (1) Only firm quarters in which the associated firms use the cost method or the equity method to account for long-term investments in common stock of other corporations will be selected. Furthermore, no 7Richard E. Rustin, "am Board Divided on Whether to Follow Big Board for General Broker-Fee Rise,” Wall Street Journal, May 23, 1973, p. 40 67 disclosure of the results of applying an alternative accounting method may be disclosed in footnote or otherwise.8 The medium to be used in determining whether firm quarters satisfy this criterion is the associated firm's annual report for the year containing the quarter under consideration. In applying this criterion it is assumed that unless an accounting method change is indicated by footnote in the annual report the firm has consistently applied in each quarter of the year the method of accounting for long—term common stock investments disclosed in its annual report. If an accounting method change is indicated by footnote in the annual report, then quarterly reports will be examined to determine which, if any, firm quarters may be selected. (2) Each firm quarter selected must have no news releases specific to the associated firm occurring during that quarter except a quarterly earnings announcement. The medium to be used in determining whether firm quarters satisfy this criterion is the Wall Street Journal Index. This medium lists by firm and date all news releases specific to any 81t should be recognized, however, that frequently the primary, if not the only, financial statements of an investor corporation are consolidated statements. Furthermore, these consolidated statements may be the result of consolidating the accounting data of the investor and all of its investees or the result of consolidating the accounting data of the investor and only some of its investees. However, regard— less of the extent of consolidation, all investments which are consoli- dated are being reported, essentially, under the equity method accounting concept, and it should be added will be considered as such in applying this criterion. Finally, upon preliminary review of one hundred forty annual reports of publicly owned corporations, it appears that most investor corporations consolidate at least one investee; therefore, for practical reasons (1) firms in the cost group may include those with some investees consolidated, the remainder being accounted for using the cost method and, (2) firms in the equity group may include (a) firms with all investees consolidated and (b) firms with some investees consolidated, the remainder being accounted for using the equity method. 68 given firm reported in the Wall Street Journal in a given year. Although other media exist which report business news, indexes of all news releases specific to any given firm by firm and date are not avail- able for these media. Therefore, although a detailed examination of these other media may be both desirable and feasible, for practical reasons it shall not be attempted. (3) Each firm quarter selected must have no news releases specific to the associated firm occurring during the quarter immediately pre— ceding the selected firm quarter except a quarterly earnings announce- ment. The medium to be used in determining whether firms satisfy this criterion is, like criterion (2), the Wall Street Journal Index. (A) To obtain some assurance that all firm quarters selected are those in which the associated firms are similar with respect to account— ing policy characteristics each firm quarter selected must be one in which the associated firm, when appropriate, (a) Used and disclosed only the results of applying the tax reduction method of accounting for the investment tax credit; (b) Used and disclosed only the results of applying the ”normalized” method to account for differences in income taxes for book purposes and tax reporting purposes; (c) Used and disclosed only the results of applying the straight—line method of computing depreciation; (d) Used and disclosed only the results of applying the lower of cost or market inventory valuation method; and (e) Used and disclosed only the results of applying the first-in, first—out inventory cost flow assumption. 69 The medium to be used in determining whether firm quarters satisfy this criterion is the annual report of the associated firm for the year containing the quarter under consideration. In applying this criterion it is assumed that unless an accounting method change is indicated by footnote in the annual report the firm has consistently applied and reported in each quarter of the year only the accounting method dis- closed in its annual report. If an accounting method change is indi- cated by footnote in the annual report, then quarterly reports will be examined to determine which, if any, firm quarters may be selected. Accounting alternatives in other areas could be restricted also. However, the five areas above are chosen for restriction because the choice among the alternatives in each of these areas has a significant influence on reported earnings of the firms making the choice.9 Alternatives in other areas, e.g. pension plan accounting and research and development cost accounting, which also have a significant influence on reported earnings of the firms making the choice, are excluded from restriction primarily because firms do not typically disclose the accounting methods used in other areas.1 9See for example, James Don.Edwards, Roger H. Hermanson, and R. F. Solmonson, Accounting: A Programmed Text, Vol. 2 (Homewood, 1970), pp. 102-135, 170—171, 622, 630—632; Harry Simons and Wilbert E. Karrenbrock, Intermediate Accounting (Cincinnati, 196A), pp. 199-22A, 335-352, 307-312, A21-A23, AA5—A60, 515-516; and Walter B. Meigs, et al., Intermediate Accounting (New'York, 1968), pp. 107-108, 256-270, 356, 380-383 #39. 633—655. 1OSee for examples of the influence on reported earnings of other accounting alternatives the entire texts of Edwards, Hermanson, and Solmonson; Simons and Karrenbrock; and Meigs, et al. That firms do not typically disclose the accounting methods used in areas other than the five chosen for restriction is an observation made upon preliminary review of one hundred forty annual reports of publicly owned corpora- tions. 7O (5) For every firm quarter associated with a given industry selected for the cost group a firm quarter associated with the same industry must be selected for the equity group and vice versa. Indus- try classifications will be determined by reference to COMPUSTAT. (6) Each firm quarter selected must be one during which the asso- ciated firm was listed exclusively on the American Stock Exchange (hereinafter referred to as AMEX). In addition to the reason given earlier for using the AMEX, the AMEX is chosen rather than the New'York Stock Exchange because May's research indicates that firms listed on the AMEX typically have fewer news releases than firms listed on the New York StockExchange.11 The AMEX is chosen rather than the Midwest Stock Exchange, the Pacific Stock Exchange, or the informal exchange called the Over the Counter Market for two reasons: (1) the AMEX pro- vides many more firms and consequently firm quarters from which to se- lect, and (2) the other exchanges do not have a market index identified specifically with them to use in the adjustment process for the general market effect to be discussed later.12 Like industry classification, exchange listing status will be determined by reference to COMPUSTAT. (7) For each firm quarter selected the associated firm must have a current ratio that is within.the 95% confidence interval around an estimate of the industry mean. The industry mean will be estimated using the current ratios of all firms in a given industry which are contained in the COMPUSTAT file, are listed on the AMEN, and have 11Robert George May, ”An.Empirical Evaluation of the Significance of Quarterly Accounting Data in Investor Decision'MakingP (unpublished Ph.D. dissertation, Michigan State University, 1970). 12Cohen and Zinbarg, pp. 9A~101. 71 long-term unconsolidated investments in common stock of other corpora— tions. It should be noted that the data to be used in estimating the industry mean do not satisfy the assumption of random selection under which confidence intervals are ideally constructed and therefore may (but do not necessarily) bias the estimate of the mean and the related confidence interval. However, since the purpose of this criterion is only to establish a desired degree of confidence in the similarity of firm quarters of a given industry selected for this research with respect to the liquidity function, any bias which may exist is of small consequence. Therefore, the data used in estimating the mean and the related confidence interval will be treated as if the random selection assumption were not violated. (8) For each firm quarter selected the associated firm must have a profit margin that is within the 93% confidence interval around an estimate of the industry mean. The sample data to be used in construc- ting this interval are subject to the same limitation as the data to be used in constructing the confidence interval around a mean industry current ratio in criterion (7) above. The satisfaction of these eight criteria is selecting firm quarters for this research should result in two groups of firm quarters which are similar except that one group is associated with the cost method and the other group is associated with the equity method. Two Additional Selection Criteria Two additional criteria will be added to the list already dis- cussed. The first is added because it facilitates the initial identi- fication of firms having associated quarters with the potential for 72 satisfying selection criterion (1) above. This first additional criterion is: Each firm, with associated quarters selected, is one for which COMPUSTAT reports amounts under the captions ”Investments and Advances to Subsidiaries” and/or “Investments and Advances-—Other" for any of the years 1967 through 1969. Included under these COMPUSTAT captions are long-term investments representing unconsolidated subsidi- aries, affiliates, associates, and joint ventures.13 The second addition to the criteria list is made to give some minimum assurance that the results of applying the chosen accounting method has, in the accountants' terminology, some ”material" effect on total net earnings of the investor corporation. This second additional criterion is: For each firm quarter selected, the investees' contri- bution to total investor earnings as a result of applying the chosen accounting method must be at least 5% of investor net earnings. The primary medium from which data will be obtained for determining satis- faction of this criterion is the associated investor corporation's annual report. If such data is not available in the annual report, the secondary medium for such data will be that portion of the corresponding SEC Form 109K required under Article A of Regulation SAX of the United 1A States Securities and Exchange Commission. Finally, it will be assumed that net earnings, other than dividends received from an inves- tee, accrue uniformly through a year. 13Staff of Standard Statistics a division of Standard and Poor's Corporation, COMPUSTAT'Manual (New York, 1972), sec. 5, p. 2A. 1L’United States Securities and Exchange Commission, Re ation SAX, 6) 7:3. Form and Content of Financial Statements (Washington, 196 , pp. 73 Time Period Covered by the Research The time period over which firm quarters will be selected for this research is January 1, 1967, through December 31, 1969. January 1, 1967, is chosen as the beginning date because the market index to be used in adjusting for the general market effect, to be discussed later, was not developed until mid-1966.15 This market index is the AMEX Index. The ending date is chosen as a result of ”Opinion No. 18" of the American Institute of Certified Public Accountants' Accounting Prinp ciples Board.16 That Opinion, issued in March, 1971, requires, in essence, the use of the equity method for any investment representing an ownership interest of twenty percent or greater in the investee. All other investments are to be accounted for using the cost method unless certain excepting conditions can be met. The effective date of the Opinion was December 31, 1971, but earlier application was encouraged. It is possible, although unlikely, that this encouraged early applica- tion could have affected financial reporting practices for the year 1970. Therefore, in order to avoid the effect which any early applica— tion might have on this research effort, the year 1969 is the last year examined. 1BCohen and Zinbarg, p. 97. 16American Institute of Certified Public Accountants, Accounting Principles Board, ”APB Opinion No. 18: The Equity Method of Account- ing for Investments in Common Stock,” The Journal of Accountangy (June, 1971), p. 66. 7A Measurement_Interval and Measurement Forms for InvestorsT Reactions to Quarterly Earnings Announcements As discussed previously the approach of this research effort is to compare the instantaneous price change and share trading volume after the release of quarterly earnings announcements associated with two groups of corporations, a cost method using group and an equity method using group. However, recall from Chapter III that operationally, ”instantaneous adjustment" is a random variable. The value of the random variable for any given security is the time difference between the initial perception of information and complete adjustment for it. The research of both Beaver and May, particularly May, indicates that the expected value of this random variable is less than or equal to 17 one trading week, i.e. five trading days. Therefore, this research effort will employ a time interval of one trading week over which to measure investors' reactions to quarterly earnings announcements. The week will begin on the day of announcement and end four trading days later. The day of the quarterly earnings announcement will be deter— mined by reference to the Wall Street Journal Index. Regardless of the time interval over which investors' reactions to quarterly earnings announcements are measured, these measurements-— price changes and share trading volume-can be made in either absolute terms or percentage terms. Price changes will be measured in percent- age terms in this research for two reasons: (1) When measured in percentage terms, price changes are essentially transformed to a common 17May, pp. 100—126; and William H. Beaver, ”The Information Content of Annual Earnings Announcements,” Empirical Research in.Accounting: Selected Stpdies,_1968, a Supplement to Volume 6 of the Journal of Accounting Research, pp. 67-101. 75 base facilitating comparative analysis. It is difficult if not impos- sible to meaningfully compare a one dollar absolute change in price on a twenty dollar share and a one dollar absolute change in price on a fifty dollar share without transforming the changes to a common base. However, when expressed in percentage terms no further transformation is necessary for a meaningful comparison. The one dollar change in both shares hypothesized above would be expressed as five percent and two percent, respectively, allowing an immediate, direct, and meaninge ful comparison. (2) An examination of nearly all standard finance textbooks as well as the current finance literature indicates that the market psychology, and consequently investor reaction, is in terms of returns on investment expressed in percentage terms.18 It appears reasonable that if the market psychology is oriented toward percentage terms rather than absolute terms and if meaningful comparisons are facilitated by the expression of price changes in percentage terms, one should measure price changes in percentage terms. Share trading volume will also be measured in percentage terms in this research. Beaver argues for this measurement approach for no less important a reason than that it facilitates meaningful compari- sons.19 This is the same as argument (1) above in favor of measuring price changes in percentage terms. 18See for example Henry A. Latane and Donald L. Tuttle, Security Analysis and Portfolio Management (New'York, 1970). 19 Beaver, p. 73. 76 Data Adjustments Regardless of whether investors' reactions to the outputs of accounting methods are measured as absolute price changes, percentage price changes, absolute share trading volume, or percentage share trading volume, the raw observations of these reactions must be adjusted before they can be used to make the inferences suggested previously. Three types of adjustments are necessary: (1) an adjustment for capitalization changes; (2) an adjustment for the general market effect; and (3) an adjustment for nonppublic information effects. For the obvious reason of comparability, it is necessary to adjust price change measurements and share trading volume measurements for capitalization changes such as stock dividends, stock splits, and new issues. The technique to be used in making this adjustment is the one suggested by COMPUSTAT: ”To adjust price to a current units basis, divide the indi- cated price for each year by the corresponding adjustment factor. To convert shares traded to an equivalent current basis, the reported shares traded are multiplied by the corresponding adjustment factor. . . . Adjustments to . . . [dividends] are obtained directly by dividing the indicated20 leldend per share by the corresponding adjustment factor." The COMPUSTAT adjustment factors are numbers which, when ". . . applied to per share data for earlier years, in effect convert such data into terms of the current share units.”21 For this research the current share unit to which all per share data will be converted is that exist- ing for each firm at December 31, 1969. 2OStaff of Standard Statistics, p. 25. 21Ibid. 77 The second adjustment of the data is for the general market effect. The general market effect is, in essence, the influence of a news release by any firm or agency on prices of all publicly owned firms.22 That this phenomenon exists is supported principally by the research of King.23 In addition Beaver has argued as follows that the same phenomenon may affect volume measurements: ”It is possible that the abnormally high volume may be caused by market-wide pieces of information that are re- leased at the same time as . . . {data generated by the accounting alternatives under study]. Since the . . . [data enerated by the accounting alternatives] are released . . . fby individual members of each group] throughout the year, this is not a very plausible explanation of the findings. Nevertheless, removing the market-wide effects should allay any fears that this unlikely situation does account for the results. More importantly, the analysis will serve to reduce 'noise' in the volume data. Noise is any movement in volume due to unspecified factors, one of which is market- wide events that would cause increases in the volume" It is, therefore, necessary to remove from both the raw price and volume data that portion of the movement attributable to the general market effect. The residual is that which can be associated with the individual securities. (King also found that industry effects are relatively insignificant, accounting on the average for only eleven 22Benjamin'F. King, "Market and Industry Factors in Stock.Price Be- havior," The Journal of Business, XXXIX (January, 1966), pp. 139-190. 2'3Ibid. 2l‘Beaver, p. 75. 78 percent of the movement of individual security prices while the market effect accounted for thirty percent on the average.)25 The technique to be used in making the adjustment of individual firms' price data is that proposed by Sharpe.26 The technique is as follows: (1) The regression coefficients Aj and Bj in the following equation are estimated. A. + B.M + R. P. at J J t Jt S.t + D't jt—l where Pjt Sjt = the closing price of the jth stock at the end of week t; D = the dividend on the jth stock during the week the Jt stock went ex dividend; M = ln( ); t Nt-l N = the closing value of the AMEX Index at the end of week t; and R.t = a random term in the above equation representing the 3 non-market related part of Pjt. 25King, pp. 139-190. Although eleven percent may on first examina- tion seem anything but insignificant, most if not all researchers regard it as insignificant due to the difficulty of constructing an acceptable industry index necessary to remove the industry effect. (For example see Beaver, pp. 67-92; Elba F. Baskins, ”The Communicative Effectiveness of Consistency Exceptions,” The Accounting Review, XLVII (January, 1972), pp. 38-51; Eugene F. Fama, et al., ”The Adjustment of Stock Prices to New Information," International Economic Review, X (February, 1969), pp. 1-21; and Nicholas J. Gonedes, ”Some Evidence on Investor Actions and Accounting'Messages-éPart II,” The Accountipg Review, XLVI (July, 1971), pp. 535-551.) Furthermore selection criterion (5) above should reduce any industry effect in this research effort to an even lesser level of significance. 26William F. Sharpe, ”A Simplified Model for Portfolio Analysis," Management Science, IX (January, 1963), pp. 277-293- 79 The data used to estimate Aj and Bj are data from the twelve weeks immediately preceding the quarterly earnings announcement week and the ten weeks immediately succeeding the quarterly earnings announcement weeks except as discussed below. Data from the two weeks immediately preceding the quarterly earnings announcement are not used in the regression. Beaver's work indicates that the price behavior of indi- vidual securities in the two weeks immediately preceding an earnings 27 announcement are affected by the forthcoming announcement. Reasons for this phenomenon may be that investors anticipate the forthcoming announcement, that there is a slow leak in the communication channel, or both.28 Whatever the explanation, an individual firm's security price does slowly begin to respond to the firm's earnings announcement about two weeks prior to its issue (although the majority of the response occurs immediately after the announcement).29 Therefore to use data from these twO weeks in the regression would bias the Aj and Bj estimates. (2) When estimates of A and Bj are found, the procedure is J reversed using data from the quarterly earnings announcement week. R. = P. -A. -B.M Jt Jt J j t The Rjt now represents a price change measurement in percentage terms for stock j over the quarterly earnings announcement week adjusted for capitalization changes and with the estimated market effect eliminated. 27Beaver, pp. 67-101. 28Ibid. 29Ibid. 80 The market index to be used in the adjustment of price data for the market effect is the AMEX Index. This index is used because it is the only widely based index identified with the American Stock.Exchange from which firms (or more prOperly firm quarters) are selected for this research effort.30 The volume data will also be adjusted for a market effect. The technique to be used in making the adjustment is that developed by 31 Beaver. It is quite similar to the technique which will be used to adjust the price data. (1) Beaver's technique ideally requires initially the computation of the following two statistics for each firm in each week for which 32 volume data is collected. number of firm i shares traded in the five day trading_week t jt number of firm i shares outstanding in the five day trading week t number of all AMEX firms' shares traded V = in the five day ppading week t Mt number of all AMEX firms' shares out- standing in the five day trading week t However, due to the unavailability of data with respect to the number of firm i shares outstanding in week t and the number of all AMEX firms' shares outstanding in week t, these statistics must be modified. ‘When modified, they become: 30Cohen and Zinbarg, pp. 9A-101. 3J'Beaver, pp. 72—7A. 321bido, p. 730 81 number of firm i shares traded in the V' five day trading week t jt average number of firm i shares out- standing for the quarter containing the five day trading week t number of all AMEX firms' shares traded V' in the five day trading week t Mt average number of all AMEX firms‘ shares outstanding for the quarter con- taining the five day trading week t vat and VMt represent approximations, respectively, of the percentage of firm i's shares traded in the five day trading week t and the per— centage of all AMEX firms' shares traded in the five day trading week t. As approximations, they are, of course, less than perfect measures. How imperfect is not determinable. Furthermore, the weighting scheme 33 implicit in computing V' introduces the possibility for bias. Howe Mt ever, Beaver defends the statistic, writing, "While this feature is not entirely satisfying, its use is defended on the grounds that this index is much easier to obtain than an index that assigns equal weight to all firms and because there is no reason to believe the use of this index leads to either an upward or downward bias in the findings. 0 o 0.3!"; (2) The regression coefficients a‘j and bj in the following equa- tion are estimated. 1 = v vjt a3 + ijMt + ejt The data used to estimate a and b are data from weeks corresponding 3 J exactly to weeks from which data is used to estimate A and B above. 3 J (3) When estimates of aj and bj are found, the procedure is reversed using data from the quarterly earnings announcement week. 33lbid., p. 7A. 3min. 82 = ' _ _ I ejt vjt 83 ijMt The ejt now represents a share trading volume measurement in percentage terms for stock j over the quarterly earnings announcement week adjusted for capitalization changes and with the estimated market effect elimi- nated. The final adjustment of the data that is necessary is an adjustment for the effect of nonppublic information on the effect of common stock price behavior. Even a cursory inspection of security price histories leads one to the conclusion that security prices fluctuate or change almost continually. Even in the absence of new public information this phenomenon is apparent. For lack of a better explanation of these price changes, they are simply called non-public information related price changes. Since this research effort is specifically concerned with isolating and comparing price changes that can be attributed to new pppllp information, in particular the outputs of alternative accounting methods, the portion of the total price change in the quarterly earnings announcement week attributable to non-public information must be removed. The technique to be used in making this adjustment is based on the assumption that the average effect of non-public information on security price behavior in the ten week period immediately preceding the quarterly earnings announcement (excluding the immediately preceding two weeks) is the same as the effect of nonppublic information on secu- rity price behavior in the quarterly earnings announcement week. To the extent that this assumption is fallacious, the technique will result in an inadequate adjustment. The technique is as follows: (1) Adjust the data from the ten week period immediately pre- ceding the quarterly earnings announcement (excluding the immediately 83 preceding two weeks) for capitalization changes and for the market effect. For practical reasons the adjustment for the market effect will be made using the same A3 and Bj as used to adjust data from the quar- terly earnings announcement week even though to some extent this is technically inappropriate. (2) Compute the average weekly price change over the ten week interval in step (1) using the adjusted weekly data from step (1). (3) Subtract the average weekly price change measurement in (2) from the price change measurement in the quarterly earnings announcement week after it is adjusted for capitalization changes and for the market effect. The result of this adjustment is a price change measurement in percentage terms for the quarterly earnings announcement week for each firm quarter selected for this research effort, adjusted for capitali— zation changes, the general market effect, and the effect of non-public information. An entirely analogous adjustment will be made for the effect of non-public information on share trading volume measurements for the quarterly earnings announcement week. The Comparison After the price change measurements for the quarterly earnings announcement weeks are adjusted as described above, the measurements associated with the cost firms will be compared with the measurements associated with the equity firms. Similarly, the adjusted share trading volume measurements for the quarterly earnings announcement weeks asso- ciated with the cost firms will be compared with the adjusted share 8A trading volume measurements for quarterly earnings announcement weeks associated with the equity firms. Finally, the decision rules developed in Chapter III will be applied in evaluating cost method generated data and equity method generated data. However, the nature of these comparisons in an empirical setting immediately arises. Specifically, to be able to draw convincing infer— ences a reasonable technique for comparing many measurements in aggre- gate is needed. Furthermore, the comparison technique needs to provide some sense of the significance of any difference detected in the measurements compared. Several statistical comparison techniques are available which satisfy these needs. All of these statistical tech, niques presume samples of some minimal size, randomly selected, or if systematically selected, reasonable assurance that the selection cri- teria do not introduce bias regarding the qualities about which inferences are to be drawn. (In the absence of such samples, statis- tical comparison techniques are invalid and one may, at best, make only intuitive inferences about the pOpulations represented by the samples.) Now assuming adequate samples the technique chosen for comparing both the price change measurements and the share trading volume 35 measurements above is known as the nonparametric MannAWhitney'U Test. 3SSidney Siegel, Nonparametric Statistics for the Behavioral Sciences (New'York, 1956), pp. 116—126. 85 When comparing the price change measurements, the test proceeds as follows:36 (1) Determine the values of n1 and n2 where (a) n1 = the number of observations (i.e., firm quarters) in the smaller of the two groups, and (b) n2 = the number of observations (i.e., firm quarters) in the larger of the two groups. 1 + n2 observations. The reason for using absolute values of the price change observations is as (2) Take the absolute values of all n = n follows: The decision rule developed in Chapter III is that the smaller the price change immediately following a quarterly earnings announcement the greater the usefulness potential of the output of an accounting method to investors on average. The price change in percentage terms can be either positive or negative depending upon whether the price moves upward or downward from its starting point. However, with respect to the decision rule, the direction of change is immaterial; only the magnitude of the price change is important. Therefore, only the abso- lute values of the changes are considered in the comparison process. (3) Rank all n = n1 + n2 observations, assigning the rank of 1 to the observation whose absolute value is the lowest. Ranks range from 1 to n = n1 + n2. Assign tied observations the average of the tied ranks. 36The steps enumerated in this section for making the MannéWhitney U Test are those presented by Sidney Siegel in Nonparametric Statistics for the Behavioral Sciences (New York, 1956), p. 126. Most of these steps are extracted verbatum from Siegel's list without the normal indication that the material was quoted. This is done due to the nature of the material. Additions or modifications to Siegel's general steps to make them particular for this research effort should be obvious from the context, but the reader is encouraged to compare the discussion in this section with that of Siegel's (p. 126) to determine exact modifications. 86 (A) Sum the ranks assigned to the group with n1 observations. Denote this sum by the symbol R1. (5) Sum the ranks assigned to the group with n observations. 2 Denote this sum by the symbol R2. (6) Compute the statistic U using either of the following formu- lations. n1(n1 + 1) (a) U = nln2 + 2 - Rl n (n + 1) 2 2 (b) U ‘ nln2 + 2 ‘ R2 (7) Determine the significance of the U statistic calculated above according to the appropriate method below. The appropriate method depends upon the size of n2. (a) If n2 is 8 or less, the exact probability associated with a value as small as the calculated value of‘U is determined by reference to Table J published in Nonparametric Statistics for the Behavioral Sciences by Sidney Siegel. (b) If n2 culated value of U may be determined by reference to Table K published is between 9 and 20, the significance of the cal- in Nonparametric Statistics for the Behavioral Sciences by Sidney Siegel. (c) If n2 is larger than 20, the significance of the calcup lated value of U may be determined by first transforming the U statistic to a z statistic and then determining the significance of the z statis— tic by reference to a normal deviate table such as Table A published in Nonpnrametric Statistics for the Behavioral Sciences by Sidney Siegel. The transformation of the U statistic to a 2 statistic is specified by the following formulation: nn “VISi—fz-jflz [Ln—EJ- - 2T] where U = the value of the U statistic calculated as indicated in (6) above, = the number of observations in the smaller of the two groups, = the number of observations in the larger of the two groups, where t the number of observations tied for a given rank. (8) Finally, if the significance of the calculated value of U is equal to or less than the desired significance, i.e. c( , reject the null hypothesis H0 in favor of the alternative hypothesis H1. The desired significance level for this research effort is 5%. HD for this research effort is: The quarterly earnings announcement week price changes associated with the cost group are stochastically the same as the quarterly earnings announcement week price changes associated with the equity group. Hl for this research effort is: The quarterly earnings announcement week price changes associated with the cost group are not stochastically the same as the quarterly earnings announcement week price changes associated with the equity group. If H0 is rejected in favor of H1, the direction of the difference will be determined by comparing the rank sums associated with each group. For example, if R is the rank sum for the cost group, R2 is the rank sum for the equity 1 group, and R21> R1, the conclusion will be that the quarterly earnings 88 announcement week price changes associated with the equity group are stochastically larger than the quarterly earnings announcement week price changes associated with the cost group. Then applying the deci- sion rule developed in Chapter III, the conclusion will be that the cost method generated data has greater usefulness potential for investors on average than does equity method generated data; or equivalently that the cost method is better than the equity method from the viewpoint of investors on average based on the American Accounting Association's usefulness criterion. An entirely analogous comparison of share trading volume measure- ments associated with the two groups will be made to determine the degree of consensus among investors regarding the usefulness potentials of cost method generated data and equity method generated data, except that raw values for percentage of shares traded will be compared rather than their absolute values because of the one directional concept underlying share trading behavior. Summgpy The rules develOped in Chapter III for evaluating alternative accounting methods based on the American Accounting Association's use- fulness potential criterion by observing the behavior of common stock prices and share trading volume were based on some assumed ideal conditions. These ideal conditions are not in all cases consistent with real world conditions. Therefore, several measures were discussed which, it was argued, should reduce or compensate for the difference between the ideal and real world conditions for this research effort. Furthermore, three adjustments of the data for uncontrollable factors 89 were discussed-—(1) an adjustment for capitalization changes, (2) an adjustment for the general market effect, and (3) an adjustment for the effect of non-public information. Finally, a statistical method of comparing the common stock price behavior and share trading volume associated with cost method generated data and equity method generated data was described with an indication of how the results of that statistical comparison could be used in conjunction with the decision rules develOped in Chapter III to evaluate the alternative accounting methods under consideration. CHAPTER V EMPIRICAL FINDINGS, IMPLICATIONS, LIMITATIONS AND SUGGESTIONS FOR FURTHER RESEARCH Introduction In Chapters III and IV a methodology was develOped for the purpose of determining and appraising the relative usefulness potentials of alternative accounting methods' outputs. That methodology was applied, in part as a test of the empirical applicability of the methodology itself, but obviously more fundamentally as an attempt to add convincing empirical evidence to the (heretofore largely a priori) cost versus equity debate. Accordingly, in this chapter the results of applying the methodology to the cost and equity accounting alternatives, the implications of the results, and the limitations of the methodology and its application are presented and discussed. Finally, several suggestions for further research are presented. Empirical Findings As indicated in Chapter IV, firm quarters were selected for this research effort on the basis of a set of ten criteria. The ten criteria are reproduced below in the sequence in which they were satisfied in the sample selection process: (1) Each firm, with associated quarters selected, was one for which COMPUSTAT reports amounts under the captions ”Investments and 90 91 Advances to Subsidiaries” and/or ”Investments and Advances-—0ther" for any of the years 1967 through 1969. (2) Each firm quarter selected was one during which the associated firm was listed exclusively on the American Stock Exchange. (3) For each firm quarter selected the associated firm had a profit margin that was within the 95% confidence interval around an estimate of the industry mean. (A) For each firm quarter selected the associated firm had a current ratio that was within the 95% confidence interval around an estimate of the industry mean. (5) Each firm quarter selected had no news releases specific to the associated firm occurring during that quarter except a quarterly earnings announcement. (6) Each firm quarter selected had no news releases specific to the associated firm occurring during the quarter immediately preceding the selected firm quarter except a quarterly earnings announcement. (7) Only firm quarters in which the associated firms used the cost method or the equity method to account for long-term investments in common stock of other corporations were selected, except as modified by footnote 8 (page 67) in Chapter IV. (8) To obtain some assurance that all firm quarters selected were those in which the associated firms were similar with respect to accounting policy characteristics, each firm quarter selected was one in which the associated firm, when appropriate, (a) Used and disclosed only the results of applying the tax reduction method of accounting for the investment tax credit; 92 (b) Used and disclosed only the results of applying the ”normalized” method to account for differences in income taxes for book purposes and tax reporting purposes; (c) Used and disclosed only the results of applying the straight-line method of computing depreciation; (d) Used and disclosed only the results of applying the lower of cost or market inventory valuation method; and (e) Used and disclosed only the results of applying the first—in, first-out inventory cost flow assumption. (9) For every firm quarter associated with a given industry selected for the cost group a firm quarter associated with the same industry was selected for the equity group and vice versa. (10) For each firm quarter selected the investees' contribution to total investor earnings as a result of applying the chosen accounting method was at least 5% of investor net earnings. The results of applying these criteria are presented in Table A and an indication of the severity of each of the criteria in terms of sequential sample size reduction rates is presented in Table 5. The ten criteria in combination reduced the number of firm quarters from 21600 firm quarters on the COMPUSTAT 1800 Industrials Tape for the years 1967, 1968, and 1969 to 16 firm quarters on which to apply the methodology develOped in Chapters III and IVA-8 firm quarters (and A firms) in each group. The combined reduction rate for the ten criteria in combination exceeds 99.99%, indicating that these criteria, argued as important for a real world application of the conceptual framework developed in Chapter III, are very severe in terms of limiting the sample sizes. Furthermore, the samples were derived entirely from 93 TABLE A COMPOSITION OF COST.AND EQUITY FIRM QUARTER GROUPS AMEX . Firm Name Ticker Quarterly Earnings Industry Announcement Date Symbol Cost Group: Rowland Products Inc. RP Oct. 26, 1967 Chemicals- Intermediate Rowland Products Inc. RP Apr. 25, 1968 “ Rowland Products Inc. RP Oct. 23, 1969 " Rogers Corp. ROG July 17, 1968 Plastic Products- MiSCo Shattuck Denn Mining SDE Apr. 7, 1969 Fabricated Metal Corp. Products Shattuck'Denn Mining SDE Aug. 15, 1969 " Corp. Greer Hydraulics GRH Dec. 3, 1968 Machinery— Industrial Greer Hydraulics GRH Apr. 30, 1969 " Equipy Group: Fields Plastics & Chem. FLP Oct. 2, 1967 Chemicals- Intermediate Fields Plastics & Chem. FLP March 18, 1968 ” Fields Plastics & Chem. FLP Sept. 16, 1969 ” Pioneer Plastic Corp. PPK June 13, 1967 Plastic Products- MiSCo Plant Industried Inc. PLD Jan. 2, 1968 Fabricated Metal Products Plant Industries Inc. PLD May 20, 1968 " US Filter Corp. UFT Feb. 25, 1969 Machinery- Industrial US Filter Corp. UFT May 22, 1969 n 9A TABLE 5 SELECTION CRITERIA SEVERITY IN TERMS OF SEQUENTIAL SAMPLE SIZE REDUCTION RATES Sequential Selection Criteria POSSlble FlIm Reduction Qtrs. Remaining Rate (Rounded) Initial Number of COMPUSTAT 1967, 1968, 1969 Quarters 21600 1. COMPUSTAT 1967, 1968, 1969 "Invest- ment & Advances" Quarters 21336 1.A% 2. Exclusive AMEX listing 7AOA 65.3% 3. Profitability Index confidence interval 2350 68.3% A. Current Ratio confidence interval 2068 11.9% 5. No news announcements in quarter 17A1 15.7% 6. No news announcement in preceding year 11.13 18.8% 7. Cost or equity 1350 A.A% 8. Accounting policy characteristics 1261 6.5% 9. Equal industry representation per group 13A 89.l% 10. Materiality of investee contribu- tion 16 85.5% 95 systematic application of the selection criteria above, with no unre- stricted random selection at any stage. Finally, noting in retrospect the number and nature of the selection criteria employed as well as the fact that related observations (related by virtue of being associated with the same firm even though separated by time) were included in each sample group, it is clearly possible that the samples may be statis- tically biased, i.e. not representative of a larger population of investor firms (e.g. all COMPUSTAT AMEX investor firms, or more broadly all investor firms). Thus it appears inapprOpriate to carry out the statistical compari- sons outlined in Chapter IV in an effort to develOp convincing, statis- tically valid, empirical evidence. The data generated may be used, however, in two ways: (1) To illustrate the statistical comparisons, .2§.1£ the samples were unbiased; and (2) To draw intuitive inferences, to the extent such may be suggested by the data. Therefore, for the selected sample firm quarters the price change comparison and volume of shares traded comparison in the quarterly earnings announcement weeks were made as indicated in Chapter IV and are presented in Tables 6 and 7, respectively, after adjustment for capitalization changes, adjustment for the general market effect, and adjustment for the effect of nonpublic information. The results of these adjustments are tabulated and displayed in Tables 8 and 9 for price data and volume data, respectively. Assuming unbiased samples the null and alternative hypotheses for the price change comparison and the volume comparison would be as follows: 96 TABLE 6 PRICE CHANGE COMPARISON Cost Group Equity Group Quarterly Earnings Quarterly Earnings Firm Announcement Week Firm Announcement Week Ticker Percentage Price Rank Ticker Percentage Price Rank Symbol Change Symbol Change (Absolute Value) (Absolute Value) RP ' 0. 16887 16 FLP 0. 03569 A RP 0.07851 12 FLP 0.00198 3 RP 0.08377 13 FLP 0.05710 7 ROG 0.0A907 5 PPK 0.06205 9 SDE 0.07A51 11 PLD 0.00027 1 SDE 0.08610 1A PLD 0.00150 2 GRH 0.06A19 10 UFT 0.06003 8 GRH 0.05273 6 UFT 0.10391 15 (Rank Sum)1 87 (Rank Sum)2 A9 (nlxn1 + 1) (8)(9) ‘ U = (n1)(n2) + 2 - (Rank Sum)1 = (8)(8) + 2 - = 13 P(U s 13) = 2.5% => Reject null hypothesis at desired confidence - level = 95% (Rank Sum) 2 < (Rank Sum)1 Q Equity provides more useful data than cost. 97 TABLE 7 VOLUME COMPARISON Cost Group Equity Group Firm Quarterly Earnings Firm Quarterly Earnings Ticker Announcement Week Rank Ticker Announcement Week Rank Symbol Percentage Volume Symbol Percentage VOIume RP -0.0063 1 FLP 0.00A8 13 RP 0.0001 7 FLP 0.0065 15 RP 0.0018 10 FLP 0.0032 12 ROG —0.00A2 A PPK -0.00AA 3 SDE -0.0060 2 PLD -0.0028 5 SDE 0.0011 9 PLD -0.0006 6 GRH 0.0025 11 UFT 0.0052 1A GRH 0.0002 8 UFT 0.0223 16 (Rank Sum)1 52 (Rank Sum)2 8A n2(n2 + 1) (8)(9) U = (n1)(n2) + 2 — (Rank Sum)2 = (8)(8) + 2 — 8A = 16 P(U S 16) = 5.2% 2} Do not reject null hypothesis at desired confidence level = 95% P(U s 16) = 5.2% :5 Reject null hypothesis only at 9A.8% confidence level or lower; if null hypothesis is rejected at 9A.8% confidence or lower then since (Rank Sum) 1 < (Rank Sum) 2 consensus among investors regarding usefulness of cost data is greater than consensus regarding usefulness of equity data. 98 m0a.0u 000.0 400.0: 000.0: amm.0I HH0.0I 000.0: 00.H mo0.0n 00nd .mm as: as: 000.0 000.0: 0m0.0 sH0.0I saH.H s00.0I «no.0: 00.H «no.0: mesa .mm .boa ens H00.0 0m0.0I 0m0.0n mm0.0 mmm.a am0.0 000.0 00.H 0m0.0 000a .00 an: 0am 000.0 mm0.0u m~0.0u m00.0u mnr.a «H0.0I am0.0u 00.a 000.0: mood .m .soe 0am ~00.0I 000.0 “no.0: 0N0.0 0sN.H s00.0u sm0.0n 00.m sm0.0u soda .ma once emu sm0.0n HH0.0 mh0.0u 000.0 mom.~ aa0.0u 040.0: 00.H 0e0.0u 000a .0H .eaom new H00.0 aa0.0u sa0.0I 000.0: mHH.0 0H0.0 000.0 00.H 000.0 moaa .mfl none: can «no.0: m00.0 000.01 mH0.0 008.0 HH0.0I hm0.0n 00.H em0.0n soda .m .000 can mm0.0I «00.0: rm0.0n mm0.0 0mm.0 0H0.0I 040.0: 00.H hr0.0n 000a .0m .eaa mew 400.0 ma0.0 0s0.0 mH0.0 00m.H 000.0: H0H.0 00.H H0H.0 whoa .m .oon 000 000.0: 000.0: ms0.0n mm0.0 sH0.0 m00.0u s00.0I 00.H s00.0n soda .mH .msa mam 1:10.01 80.0 20.0.. 80.0 400.0 000.0: 20.0.. 004 20.0.. 003 .s 5% mom oao.0 000.0 u40.0 ~00.0I «mm.H m00.0u mm0.0I 00.H mN0.0I whoa .na sass 00m 000.0: s00.0n Hao.0u H00.0I mmm.0 000.0: H00.0I m0.a Ha0.0u soda .mw .eoo am ms0.0u 000.0 Hs0.0u 000.0 0H0.a e00.0u AN0.0I m0.a sm0.0n mesa .mm .haa am moa.0u 000.0 00H.0I 400.0: 4H0.0 000.0 0mH.0I m0.H 0mH.0I soda .0m .eoo mm mm: omcmno 00.2“”an wmmmwm “0””an omcmso IHWWM we IHWWMMQ ”Mama“ Ipwflmfld owmmmzm ANWWWH Honeunm .05 «m0 . .0200. E3. R . . . . . coapmn . . Roscocdoqfifi noxofl. .0noa homcwwoa .exz .xz. .mO 80% megs 100 (1) Price change comparison null hypothesis, PHO: The quarterly earnings announcement week price changes associated with the cost group are stochastically the same as the quarterly earnings announcement week price changes associated with the equity group. (2) Price change comparison alternative hypothesis, PH1: The quarterly earnings announcement week price changes associated with the cost group are not stochastically the same as the quarterly earnings announcement week price changes associated with the equity group. (3) Volume comparison null hypothesis, vHO: The quarterly earnings announcement week percentage volume of shares traded associated with the cost group are stochastically the same as the quarterly earn- ings announcement week percentage volume of shares traded associated with the equity group. (A) Volume comparison alternative hypothesis, vH1: The quarterly earnings announcement week percentage volume of shares traded associated with the cost group are not stochastically the same as the quarterly earnings announcement week percentage volume of shares traded associ- ated with the equity group. As indicated in Tables 6 and 7, respectively, PHO would be rejected at the desired 95% confidence level but vHO would not be rejected at that confidence level. And, in fact, PHO could be rejected at a confi- dence level of 97.5% but VH0 could only be rejected at a confidence level of 9A.8%. Furthermore, since the rank sum associated with the equity group price changes is less than the rank sum associated with the cost group price changes the results of the statistical comparison would indicate that the quarterly earnings announcement week price changes associated with the equity group are stochastically smaller than the 101 quarterly earnings announcement week price changes associated with the cost group. Finally, even though the results at the desired confidence level of 95% would be that the percentage volume of shares traded in the quarterly earnings announcement week are stochastically the same for the cost and equity groups, it would be obviously naive to ignore the evidence to the contrary. For at the 9A.8% confidence level, only .2% lower than that desired, VHO could be rejected. ~If vHO were rejected, then, the quarterly earnings announcement week percentage volume of shares traded associated with the cost group would appear to be stochas- tically smaller than that associated with the equity group since the cost group rank sum is smaller than the equity group rank sum. Implications When the empirical findings, reported in the immediately preceding section, are interpreted in conjunction with the decision rules develOped in Chapter III, the conclusions below emerge. If statistical inferences were warranted, the evidence impounded in the price change comparison would indicate at the 95% confidence level that for the firm quarters included in the research the equity method provides more useful data for investors on average than does the cost method. This general inference would seem also at least intuitively plausible. Similarly, the evidence impounded in the percentage volume of shares traded comparison would appear to indicate that for the firm quarters included in this research the degree of consensus among investors is greater with respect to the usefulness of cost data than with respect to the usefulness of equity data. 102 The most obvious implication of these results relates directly to the Accounting Principles Board "Opinion 18."1 That opinion requires, in essence, the use of the equity method for any investment representing an ownership interest of twenty percent or greater in the investee. All other investments are to be accounted for using the cost method unless certain excepting conditions can be met. Since this research effort was conducted in the context of effective control, operationally defined as a twenty percent ownership interest or greater, it would appear, based on the usefulness potential criterion, that the Accounting Principles Board did make the appropriate choice between the cost and equity methods in the effective control context. However, this impli- cation as well as the others discussed below are, indeed, subject to those limitations of this research effort already discussed and those discussed in the next section. Furthermore, since this research effort was conducted only in the context of effective control and in that context examined only the relative usefulness potentials of cost and equity data, no implications may be drawn from the results reported above with respect to the apprOpriate choice among accounting alterna- tives in a non-effective control context or with respect to the choice among the equity method and the other thirty feasible alternatives in any control context. Another implication of the research results reported above is based upon the relationship between the results of using the equity method and 1American Institute of Certified Public Accountants, Accounting Principles Board, ”APB Opinion No. 18: The Equity Method of Accounting for Investments in Common Stock," The Journal of Accountancy (June, 1971), pp. 63-680 ‘.. ...- . ' «’_-.<_._ 103 the results of consolidation. It was noted in Chapter I that one of the arguments of equity advocates in support of their position was that use of the equity method produced results similar to that of consolidation and that consolidated statements are assumed to be more meaningful than separate statements.2 Although the evidence is, indeed, indirect and less than perfectly conclusive, it would appear that it does support intuitively the assumption that, in the context of investment activity, consolidated statements are more meaningful than separate statements, particularly if the cost method is used in the separate statements of the investor. Still another implication of the research results reported above is based upon the relationship among the cost and equity methods and the principle of conservatism. In Chapter IV it was noted that the cost method is generally considered more conservative than the equity method. If, indeed, the cost method is more conservative than the equity method, the research results reported above would appear to indicate that in the context of investment activity the principle of conservatism is not necessarily a sound foundation upon which to base a choice among accounting alternatives, particularly if the ultimate evaluation of the choice is to be based upon the usefulness potential criterion. Finally, under the assumption that investors are rational, the evidence reported above appears to indicate that, on average, investors 2Walter B. Meigs, Charles E. Johnson, and Thomas K. Keller, Advanced Accounting (New York, 1966), pp. 297-298; American Institute of Certified Public Accountants, Accounting Principles Board, pp. 63—68; American Institute of Certified Public Accountants, ”Accounting Research Bulletin No. 51—-Consolidated Financial Statements,” APB Accounting Princi les: Original Pronouncements as of February 1, 1971 (Chicago, 19715, II, 6091. 10A 3 do prefer equity data to cost data, as Barrett concluded. However, the congruence of Barrett's conclusion and the implication of the re- search results reported above under the stated assumption does not minimize the importance of the criticism of Barrett's research on a conceptual level presented previously. Indeed, the implication just stated is based upon the rationality assumption and that assumption may or may not be sound. Limitations As with any research effort, the research effort reported in this paper is subject to limitations. One obvious limitation of this re— search is the small sample sizes. However small sample sizes are gen-. erally regarded as limitations in the sense that they make rejection of a null hypothesis difficult. It should be obvious that had the samples been randomly selected the small sample size in this research effort would not have had such an adverse effect. Indeed, the null hypothesis related to the price test would have been rejected at 97.5% confidence and the null hypothesis related to the volume test would have been rejected at 9A.8% confidence. A second obvious limitation of this research relates to the compo- sition of the two samples. The observations included in each sample were treated as independent observations. The fact that each observa— tion was selected entirely in accordance with a stipulated set of criteria as well as the fact that related observations (related by 3M. Edgar Barrett, ”APB Opinion Number 18: A Move Toward Pref— erences of Users,” Financial Analysts Journal (JulyaAugust, 1972), pp. A7-5A. 105 virtue of being associated with the same firm even though separated by time) were included in each sample group makes adherence to the statis- tical independence assumption suspect. Consequently, the implications of the research findings may be viewed appropriately only as indications and not as statistically valid inferences. Another limitation of the research relates to the composition of the two samples in terms of the satisfaction of criterion 7 above. It was noted in Chapter IV that firms included in the cost group were those ~ 4 which carried at least one investment at cost, others possibly being consolidated. It was also noted that the equity group included firms that either fully consolidated all investments or carried one or more at equity and consolidated the remainder. The reasons that criterion 7 was satisfied in this fashion were that most investor corporations issue only consolidated statements rather than separate statements and that the consolidation process and the equity method produce similar Operating results which were presumed to be the data which influence individual investor decisions, at least the individual investor deci- sions on which this research effort was based. Now, to the extent that investors do not perceive the results of consolidation and the equity method as the same in terms of measuring Operations, the samples are inappropriately constructed and any inferences, even intuitive ones, are subject to even greater suspicion. Still another important limitation of this research effort results from a failure to test the regression lines in the general market effect adjustment process for goodness of fit. If the regression lines are not a good fit then the residuals for the quarterly earnings announcement week, the primary data on which this research is based, likely contain 106 considerable noise. However, the goodness of fit test was omitted (1) because other research efforts have indicated that the general market effect adjustment technique used in this study is an adequate one in most if not all cases,h (2) because the apprOpriate action in the case of poor fit is elimination of the associated firm resulting in a further reduction of sample sizes which would increase the severity of the first limitation discussed above, an action which appears to be of at least equal adversity as not making the goodness of fit test and therefore retaining the firm or firms in the samples, and (3) because the underlying assumptions of the goodness of fit test could not be met. Other less than obvious limitations include the following: (1) The raw price and volume data were subjected to three adjust- ments (one of which was discussed above), which likely were less than perfect; therefore, undoubtedly the data contains some noise; (2) The relative size of firms was not taken into consideration in selecting firms whose associated firm quarters were included in the research; (3) The attempt to adjust via a selection criterion for the 5 industry effect identified by King may have been less effective than an alternative adjustment technique, namely a modification of the market adjustment technique discussed previously; (A) No consideration was given to the effect of general economic cycles (i.e. up and down markets) and even a casual observer of the AEugene F. Fama, et al., “The.Adjustment of Stock Prices to New Information," International Economic Review, X (February, 1969), pp. 1- 21. 5Benjamin F. King, ”Market and Industry Factors in Stock Price Behavior,“ The Journal of Business, XXXIX (January, 1966), pp. 139-190. 107 market must be aware that the economic trends in 1967 were different than those in 1969; (5) The current ratio confidence intervals and the profitability index confidence intervals were wider than would be desired; (6) The AMEX Price Index used in the general market effect adjust- ment process is a simple average index which Latane and Tuttle suggest is inferior to a geometric average index; :0 I18"! (7) The effects of short and long security transactions were not considered; and (8) As indicated previously, no attempt was made, due to practical reasons, to test the apprOpriateness of the twenty percent rule con- 7 tained in the Accounting Principles Board ”Opinion No. 18.” Finally, all of the measures discussed in detail in Chapter IV to compensate for real world versus ideal world conditions represent limi- tations in applying the conceptual framework develOped in Chapter III. Suggestions for Further Research The most obvious suggestion for further research is simply to apply the methodology develOped in Chapters III and IV in comparing other accounting alternatives, including the other thirty methods of account— ing for long—term investments in common stock. In doing so, however, it is suggested that when possible a longer time period be examined, e.g. ten years rather than three years, thereby hOpefully increasing 6Henry'A. Latane and Donald L. Tuttle, Security Analysis and Port- folio Management (New York, 1970), p. 167 and p. 188. 7American Institute of Certified Public Accountants, Accounting Principles Board, pp. 63—68. “I‘ : . M's-L :- 108 the sample sizes. Additionally, the methodology herein develOped and employed may be further refined particularly from an application view; point. One such refinement (elimination of any unnecessary selection criteria) implies a research project in itself, namely testing the sensitivity of the results to the relaxation of any or all of the selection criteria. Another possible refinement is to expand the methodology to allow time series analyses. .1, arm The second most obvious suggestion for further research is to test the appropriateness of the twenty percent rule referred to above. It might also be suggested that the methodology implied in foot— note 2A (page A1) in Chapter III be employed in a comparison of account- ing alternatives. All of the assumptions, both explicit and implicit, in this research project, need to be tested empirically. These implied research projects are not discussed here in detail. Those interested are referred to Chapters III and IV in which most such assumptions are stated explicitly. The contention in Chapter II that control of competing public news releases will amplify the importance of earnings announcement data is subject to empirical verification. Finally, probably the most important research which can be sug- gested at the conclusion of a market based research effort such as this is that research necessary to identify the real world expectational (valuation) model or models used by investors. The lack of such research makes all other market based research efforts, this one included, less than conclusive even in the absence of any other limi— tations. 109 Conclusion In Chapter V, the empirical findings of this study were presented. 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