Note on the behavior of residual security returns for winner and loser portfolios

Portfolios are formed directly and exclusively upon residual return behavior in the months prior to portfolio formation. The empirical behavior of residual return in the post-formation period is then examined. Based upon the overall time period studied (1932 through 1977), the average residual return is essentially zero in the months subsequent to the portfolio formation. However, systematic (i.e., non-zero) residual behavior is observed in particular years. Moreover, the results suggest the possibility that ‘abnormal’ returns observed after certain events (e.g., earnings announcements) may at least in part reflect more general phenomena associated with being ‘winners’ and ‘losers’ in terms of residual returns in the months previous to the event.     

Nuclear nightmares in the Philippines

The construction of the Philippine's first nuclear power plant by Westinghouse has come to symbolize the corruption and cronyism of the Marcos' years. The plant has created so much controversy that it has yet to operate, in a country that desperately needs electrical power. The entire affair suggests that American multinationals cannot simply adopt the business practices of the host country, but instead must carefully analyze the political and business environments of their foreign based operations, and then take into account the long-term ethical implications of their decisions. The case also suggests that government needs to play a more active role in regulating multinationals, especially when sophisticated and potentially dangerous technologies are involved.William Beaver is currently an associate professor of social science at Robert Morris College which is located near Pittsburg PA. He has published a book (Nuclear Power Goes On-Line, Greenwood Press, 1990) and several articles on the subject of nuclear power. He teaches a business and society course in the college's MBA program, which has developed his interest in business ethics and its relationship to nuclear power.     

An alternative interpretation of the discontinuity in earnings distributions

We show that the asymmetric effects of income taxes and special items for profit and loss firms contribute to a discontinuity at zero in the distribution of earnings. Income taxes draw profit observations towards zero while negative special items pull loss observations away from zero. These earnings components are thus expected to contribute to a discontinuity even in the absence of discretion. We show our results are not an artifact of deflation and that other common components of earnings do not have similar effects on the earnings distribution around zero.

Accruals,Cash Flows,and Equity Values

We find, as predicted, that the differential ability of accrual and cash flow components of earnings to help forecast future abnormal earnings and the persistence of the components result in the components having different valuation implications. We base our tests on Ohlson (1999) applied to fourteen industries. We find: (1) Accruals and cash flows aid in forecasting future abnormal earnings incremental to abnormal earnings and equity book value. (2) Accruals and cash flows provide explanatory power for equity market value incremental to equity book value and abnormal earnings. (3) There is evidence that accruals and cash flows valuation coefficients are consistent with the Ohlson model.     

Conditional and Unconditional Conservatism:Concepts and Modeling

We develop a model that captures the distinct natures of and interactions between conditional and unconditional conservatism. Under unconditional conservatism, the book value of net assets is understated due to predetermined aspects of the accounting process. Under conditional conservatism, book value is written down under sufficiently adverse circumstances, but not up under favorable circumstances. The specification of earnings provided by the model yields hypotheses about how unconditional conservatism and other factors preempt conditional conservatism and so affect the asymmetric response of earnings to positive and negative share returns, both current and lagged, documented by Basu (1995, “Conservatism and the Asymmetric Timeliness of Earnings.” Ph.D. dissertation, University of Rochester’ 1997, “The Conservatism Principle and the Asymmetric Timeliness of Earnings.” Journal of Accounting and Economics 24, 3–37).This revised version was published online in August 2005 with a corrected cover date.     

The Gall in Mother's Milk

How the 1981 WHO code on infant formula marketing came about: the roles played by Nestlé, the other manufacturers, and activist groups.     

Do Stock Prices of Property Casualty Insurers Fully Reflect Information about Earnings,Accruals, Cash Flows,and Development?

This paper examines whether the stock prices of property and casualty (P&C) insurers fully reflect information contained in earnings, cash flows and accruals, and one particular accrual—development of loss reserves. The reserve for policy losses is a major accrual for P&C firms, requires substantial judgment and is the subject of unique disclosures that reveal the ex post error in management estimates. We find that investors underestimate the persistence of cash flows and overestimate the persistence of accruals for P&C insurers, but our evidence suggests the market does not underestimate the persistence of the development accrual.     

Have Financial Statements Become Less Informative? Evidence from the Ability of Financial Ratios to Predict Bankruptcy

Using a hazard model, we examine secular changes in the ability of financial statement data to predict bankruptcy from 1962 to 2002. We identify three trends in financial reporting that could influence predictive ability with respect to bankruptcy: FASB standards, the perceived increase in discretionary financial reporting behavior, and the increase in unrecognized assets and obligations. A parsimonious three-variable model provides significant explanatory power throughout the time period, with only a slight deterioration in predictive power from the first to the second time period. The striking feature of the results is the robustness of the predictive models over a forty-year period.JEL Classification: M41, G14, G33, C41     

The information content of security prices

The study derives a relationship between prices changes and earnings changes by expanding the information upon which earnings expectations are conditioned to include data other than prior earnings history. In particular, price is used as a surrogate for additional information available to market participants. This relationship provides an interpretation of the contemporaneous association between price changes and earnings changes previously observed by Ball and Brown (1968) and Beaver, Clarke and Wright (1979), among others. It also provides a basis for inferring from prices the earnings process and the expected future earnings as perceived by market participants. In doing so, it inverts the familiar price-earnings relationship and uses price as a predictor of earnings. The study differs from previous research which has examined the time series behavior of earnings based solely on previous earnings realizations. This approach can potentially lead to earnings forecasting models that are more accurate than the random walk with a drift that has been robust against challengers. In particular, the evidence indicates that security prices behave as if earnings are perceived to be dramatically different from a simple random walk process. Preliminary evidence also indicates that price-based forecasting models are more accurate than the random walk with a drift model.