Financial Reporting BY Local Government And The Disproportionate Requirements Of AAS 27

This paper discusses the economic characteristics, and related financial reporting issues, of goods and services provided by local government. These goods are grouped into three categories: public, private, and mixed public/private goods and services. Modified cash-based reports are found to be proper for government units that provide public and mixed goods, and accrual-based accounting is appropriate for units that provide private goods. When the provision of mixed goods and services by local government is not mandatory, the disclosure of the market value of the assets employed in producing these goods or services is also warranted.     

Estimating Beta

This paper presents evidence that Ordinary Least Squares estimators of beta coefficients of major firms and portfolios are highly sensitive to observations of extremes in market index returns. This sensitivity is rooted in the inconsistency of the quadratic loss function in financial theory. By introducing considerations of risk aversion into the estimation procedure using alternative estimators derived from Gini measures of variability one can overcome this lack of robustness and improve the reliability of the results.     

Accounting data and asset valuation: Theory

Firms and divisions which are not traded on organized exchanges are often valued without the benefit of market data. Accounting data is used instead. One suggested approach is to use accounting beta as a proxy for market return beta. In the context of the Arbitrage Pricing Theory, we provide a theoretical justification for such a procedure. Our results provide a set of sufficient conditions so that return betas and accounting betas are equal. Our results also suggest a general methodology for evaluating projects and untraded firms using accounting data. The method underlying the derivation here is very general and can be applied in deriving testable restrictions between fundamentals, broader in context than that of accounting variables.     

Small firm effect: The case for banks

This article contributes to the small firm effect literature by examining weekly returns on common stocks of 73 banks for the 19-year period from 1969 to 1987. It differs from previous research in this area in both the analytical tool employed and the sampled firms. The findings suggest that the small firm effect is strong, is persist over long investment periods, and is monotonically increasing with the increase in firms' size.     

Tests of the efficiency of the U.S. rights offering market: An option pricing approach

The efficiency of the U.S. market for stock purchase rights is empirically analyzed in an options framework, in which prices of rights, given the prices of underlying stock, are examined with regard to the possibilities of actually earning above-normal profits, considering the risk taken. Two neutral hedging tests for market efficiency, along with a simple buy-and-exercise trading strategy, are applied to daily traded rights data. Results from ex-post hedging tests suggest that the trading strategy based on the rights valuation model is able to differentiate between overpriced and underpriced rights so as to generate substantial book profits. The positive ex-ante hedge return, found to exist empirically, is completely eliminated once transaction costs are introduced, lending support for the efficient U.S. rights offering market on an after-transaction cost basis.     

Seasonality in outliers of daily stock returns: A tail that wags the dog?

We document significant intra-year seasonality in outliers of S&P500 daily rates of return. Controlling for outliers in dummy regressions reveals that both the January and Monday effects turn from insignificant to highly significant. Mean daily return on January doubles and becomes significantly higher than all other months of the year, and Monday's mean return turns significantly positive and higher than other days of the week. The recently documented Halloween effect turns significant only after controlling for outliers as June, August, and September turn out to be months with remarkably low rates of returns. Being random, outliers cannot serve as instrumental variables for designing trading rules, yet, their impact on options pricing through the increase in volatility, may be applied for profitable options strategies.     

The Estimation of Systematic Risk under Differentiated Risk Aversion: A Mean-Extended Gini Approach

This paper examines a mean-Gini model of systematic risk estimation that resolves some econometric problems with mean-variance beta estimation and allows for heterogeneous risk aversion across investors. Using the mean-extended Gini (MEG) model, we estimate systematic risks for different degrees of risk aversion. MEG betas are shown to be instrumental variable estimators that provide econometric solutions to biases generated by the estimation of mean-variance (MV) betas. When security returns are not normally distributed, MEG betas are proved to differ from MV betas. We design an econometric test that assesses whether these differences are significant. As an application using daily returns, we estimate MEG and MV betas for U.S. securities.     

MISUSE AND OPTIMUM INSPECTING STRATEGY IN AGENCY PROBLEMS

Assets misuse by an agent and the optimal audit inspecting strategy are analyzed in this paper. The agent and the principal are acting to maximize their expected utility and both are characterized by risk aversion. The agent's decision about a theft takes into account the probability of benefiting from the stolen assets but also the probability of being penalized if caught. The principal's decision about the optimal number of audit teams, hence, the probability of uncovering the theft, takes into account the cost involved, the probability of one team of auditors uncovering the theft and the agent's decision about the theft. We get two response curves which describe the optimal behavior of both the agent and the principal and show that there may be a Nash solution to the problem. Since in real life there are often many principals (shareholders) with different utility functions, a set of efficient strategies is offered using the First and Second degree Stochastic Dominance rules. A numerical illustration which clarifies the methodology and displays the applicability of the model is also provided.     

Sentiment and stock prices: The case of aviation disasters

Behavioral economic studies reveal that negative sentiment driven by bad mood and anxiety affects investment decisions and may hence affect asset pricing. In this study we examine the effect of aviation disasters on stock prices. We find evidence of a significant negative event effect with an average market loss of more than $60 billion per aviation disaster, whereas the estimated actual loss is no more than $1 billion. In two days a price reversal occurs. We find the effect to be greater in small and riskier stocks and in firms belonging to less stable industries. This event effect is also accompanied by an increase in the perceived risk: implied volatility increases after aviation disasters without an increase in actual volatility.     

The Association between Earnings' Yield and Market Returns: A Stochastic Dominance Analysis

This paper examines the contemporaneous association between earnings' yield and return on common stock, during the nineteen-year period commencing with 1959. The analysis includes 391 firms, which have been clustered in ten portfolios, by the magnitude and changes in their Total Debt to Total Assets ratios, over twenty years. Three Stochastic Dominance rules have been employed in a twofold examination: a market index and direct pairwise portfolio comparisons. The results suggest a positive association between earnings' yield and return on common stock and, therefore, support previously published findings. However, the association reported in this paper is limited to Third Degree Stochastic Dominance, which is tied to decreasing absolute risk aversion behaviour on the part of market participants. Since the analytical path followed in this study is free of some criticism voiced with respect to empirical applications of the capital asset pricing and market models, which have been utilized by previous writers, the results also lend further validity to the application of those models in similar studies. Résumé Cette étude examine l'association simultanée entre le rendement des bénéfices et le rendement d'actions ordinaires pendant une période de 19 ans commençant en 1959. L'analyse comprend 391 entreprises qui ont été regroupées en 10 portefeuilles selon l'ampleur et les changements du rapport de la dette totale et l'actif total sur une période de 20 ans. Trois règles de dominance stochastique ont ete employées dans un examen a deux volets portant sur l'indice boursier et les comparaisons de portefeuilles par paires. Les résultats indiquent une association positive entre les bénéfices et le rendement sur les actions ordinaires et corroborent donc les résultats d'études publiées précédemment. Cependant, l'association établie dans la présente etude est limitée à une dominance stochastique du troisième degré qui est reliée à une diminution du comportement d'aversion au risque absolu chez les participants sur le marché boursier. Comme le cheminement analytique de la présente étude ne comporte pas toutes les critiques concernant les applications empiriques des modèles de marché et de détermination de la valeur de l'actif qui ont été utilisés par d'autres auteurs, les résultats confèrent également une validité accrue à l'application de ces modèles dans des études semblables.