A new empirical model for intertemporal capital asset pricing is presented that allows both time-varying risk premia and betas where the latter are identified from the dynamics of the conditional covariance of returns. The model is more successful in explaining the predictable variations in excess returns when the returns on the stock market and corporate bonds are included as risk factors than when the stock market is the single factor. Although changes in the covariance of returns induce variations in the betas, most of the predictable movements in returns are attributed to changes in the risk premia. Copyright 1994 by American Finance Association.(This abstract was borrowed from another version of this item.)

Generally accepted auditing standards, auditing textbooks, and firm audit manuals indicate that, other things equal, the presence of significant monetary incentives based on financial results increases the inherent risk of material misstatement, and higher inherent risk should ordinarily cause the auditor to exercise a heightened degree of professional skepticism in conducting the audit. This article addresses the following basic research question: Are auditors sensitive to management's incentives to manage earnings? Research that examines whether auditors distinguish between explanations provided by managers with different incentives is important because audit standards indicate that inquiry of management can assist the auditor in evaluating significant unexpected differences. Two experiments were conducted. The first experiment explored whether management‐buyout‐induced incentives to make income‐decreasing accruals affect auditors' judgments of the probability that a material misstatement exists. As predicted, auditors were sensitive to these incentives. The second experiment explored whether bonus‐induced incentives affect auditors' judgments of the probability that a material misstatement exists. The auditors agreed that bonus plans such as the one in the experiment create incentives for management to make income‐increasing or income‐decreasing accruals depending on the terms of the plan. However, the auditors' judgments were unaffected by whether the unexpected difference and management's incentives were congruent. The auditors opted for potential audit effectiveness rather than potential audit efficiency by assuming that—on balance—management had incentives congruent with the unexpected overstatement. Résumé. Selon les normes de vérification généralement reconnues, les manuels de vérification et les guides de vérification des cabinets comptables, toutes choses égales par ailleurs, la présence d'encouragements monétaires substantiels basés sur les résultats financiers accroît le risque inhérent d'inexactitudes importantes, et un risque inhérent supérieur doit normalement amener le vérificateur à exercer davantage de vigilance dans la réalisation de sa mission de vérification. L'auteur s'intéresse à la question fondamentale suivante: les vérificateurs sont‐ils sensibles aux motivations de la direction à user d'astuces comptables aux fins de l'établissement des bénéfices? Les recherches visant à déterminer si les vérificateurs établissent une distinction entre les explications fournies par les gestionnaires dont les motivations sont différentes revêtent beaucoup d'importance, compte tenu du fait que les normes de vérification indiquent que les demandes de renseignements de la direction peuvent aider le vérificateur à évaluer les écarts inattendus appréciables. Deux expériences ont été menées. La première avait pour but de déterminer si les motivations à agir sur les comptes de régularisation de manière à réduire les bénéfices, induites par un rachat de l'entreprise par les cadres, ont une incidence sur les jugements des vérificateurs relatifs à la probabilité d'inexactitudes importantes dans les déclarations. Conformément aux prévisions, les vérificateurs se montrent sensibles à ces motivations. La seconde expérience visait à déterminer si les motivations induites par les primes ont une incidence sur les jugements des vérificateurs en ce qui a trait à la probabilité de l'existence d'inexactitudes importantes. Les vérificateurs conviennent que les systèmes de primes, comme celui de la seconde expérience, motivent la direction à agir sur les comptes de régularisation de façon à augmenter ou réduire les bénéfices, selon les conditions du système. Toutefois, les jugements des vérificateurs ne sont pas influencés par le fait que l'écart inattendu dans les bénéfices et la motivation de la direction sont reliés. Les vérificateurs optent pour l'efficacité potentielle de la vérification plutôt que pour son efficience potentielle, en supposant que, dans l'ensemble, la direction présente des motivations qui vont dans le sens des surestimations inattendues en matière de bénéfices.

Previous studies of congressional spending have typically found a large positive effect of challenger spending but little evidence for effects of incumbent spending. Those studies, however, do not adequately control for inherent differences in vote-getting ability across candidates. This paper examines elections in which the same two candidates face one another on more than one occasion; differencing eliminates the influence of any fixed candidate or district attributes. Estimates of the effects of challenger spending are an order of magnitude below those of previous studies. Campaign spending has an extremely small impact on election outcomes, regardless of who does the spending.

Previous studies of congressional spending have typically found a large positive effect of challenger spending but little evidence for effects of incumbent spending. Those studies, however, do not adequately control for inherent differences in vote-getting ability across candidates. "High-quality" challengers are likely to receive a high fraction of the vote and have high campaign expenditures, even if campaign spending has no impact on election outcomes. To avoid that bias, this paper examines elections in which the same two candidates face one another on more than one occasion; differencing eliminates the influence of any fixed candidate or district attributes. Estimates of the effects of challenger spending are an order of magnitude below those of previous studies. Campaign spending has an extremely small impact on election outcomes, regardless of who does the spending. Campaign spending limits appear socially desirable, but public financing of campaigns does not.

Auditing, Source reliability, Auditor judgment

We propose a nonparametric method for automatically selecting the number of autocovariances to use in computing a heteroskedasticity and autocorrelation consistent covariance matrix. For a given kernel for weighting the autocovariances, we prove that our procedure is asymptotically equivalent to one that is optimal under a mean-squared error loss function. Monte Carlo simulations suggest that our procedure performs tolerably well, although it does result in size distortions.

To what extent are the empirical regularities implied by market microstructure theories useful in predicting the short-run behavior of stock returns? A two-equation econometric model of quote revisions and transaction returns is developed and used to identify the relative importance of different microstructure theories and to make predictions. Microstructure variables and lagged stock index futures returns have in-sample and out-of-sample predictive power based on data observed at five-minute intervals. The most striking microstructure implication of the model, confirmed by the empirical results, specifies that the expected quote return is positively related to the deviation between the transaction price and the quote midpoint while the expected transaction return is negatively related to the same variable.

[To what extent are the empirical regularities implied by market microstructure theories useful in predicting the short-run behavior of stock returns? A two-equation econometric model of quote revisions and transaction returns is developed and used to identify the relative importance of different microstructure theories and to make predictions. Microstructure variables and lagged stock index futures returns have in-sample and out-of-sample predictive power based on data observed at five-minute intervals. The most striking microstructure implication of the model, confirmed by the empirical results, specifies that the expected quote return is positively related to the deviation between the transaction price and the quote midpoint while the expected transaction return is negatively related to the same variable.]