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Stock price clustering on option expiration dates

Journal of Financial Economics 2005 78(1), 49-87
This paper presents striking evidence that option trading changes the prices of underlying stocks. In particular, we show that on expiration dates the closing prices of stocks with listed options cluster at option strike prices. On each expiration date, the returns of optionable stocks are altered by an average of at least 16.5 basis points, which translates into aggregate market capitalization shifts on the order of $9 billion. We provide evidence that hedge rebalancing by option market makers and stock price manipulation by firm proprietary traders contribute to the clustering.

Executive compensation and risk: The case of internet firms

Journal of Corporate Finance 2005 12(1), 80-96
A major prediction of agency theory is that there is a trade-off between risk and incentive compensation. Aggarwal and Samwick (1999) [Aggarwal, R., Samwick, A., 1999. The other side of the trade-off: the impact of risk on executive compensation. Journal of Political Economy, 107, 65–105.] directly test and find results consistent with agency theory—pay-performance sensitivity is decreasing in risk. However, Prendergast, 2002, Prendergast, 2000 [Prendergast, C. 2002. The tenuous trade-off between risk and incentives. Journal of Political Economy 110 (5), 1071–1102; Prendergast, C. 2000. What trade-off risk and incentives? The American Economic Review 90 (2), 421–425.] offers a number of reasons why the sensitivity of pay to performance can be higher in risky environments. We use data from a sample of Internet firms for 1997–1999 to provide empirical evidence on these competing arguments regarding the relation between risk and CEO compensation. Consistent with Aggarwal and Samwick (1999), our results show that pay–performance sensitivity declines with increases in variance in a base model. After controlling for size, we find that pay–performance sensitivity is positively related to risk, consistent with the theoretical predictions in Prendergast, 2002, Prendergast, 2000. However, sensitivity tests in later periods show that the Aggarwal and Samwick (1999) results are more robust to changes in the economic environment.

Does Corporate Governance Matter to Bondholders?

Journal of Financial and Quantitative Analysis 2005 40(4), 693-719
Abstract We examine the relation between the cost of debt financing and a governance index that contains various antitakeover and shareholder protection provisions. Using firm-level data from the Investors Research Responsibility Center for the period 1990–2000, we find that antitakeover governance provisions lower the cost of debt financing. Segmenting the data into firms with the strongest management rights (strongest antitakeover provisions) and firms with the strongest shareholder rights (weakest antitakeover provisions), we find that strong antitakeover provisions are associated with a lower cost of debt financing while weak antitakeover provisions are associated with a higher cost of debt financing, with a difference of about 34 basis points between the two groups. Overall, the results suggest that antitakeover governance provisions, although not beneficial to stockholders, are viewed favorably in the bond market.

Unnatural Selection: Perverse Incentives and the Misallocation of Credit in Japan

American Economic Review 2005 95(4), 1144-1166
We examine the misallocation of credit in Japan associated with the perverse incentives faced by banks to provide additional credit to the weakest firms. Firms are more likely to receive additional bank credit if they are in poor financial condition, because troubled Japanese banks have an incentive to allocate credit to severely impaired borrowers in order to avoid the realization of losses on their own balance sheets. This “evergreening” behavior is more prevalent among banks that have reported capital ratios close to the required minimum, and is compounded by the incentives arising from extensive corporate affiliations.

The Politics of Bank Failures: Evidence from Emerging Markets

Quarterly Journal of Economics 2005 120(4), 1413-1444
This paper studies large private banks in 21 major emerging markets in the 1990s. It first demonstrates that bank failures are very common in these countries: about 25 percent of these banks failed during the seven-year sample period. The paper also shows that political concerns play a significant role in delaying government interventions to failing banks. Failing banks are much less likely to be taken over by the government or to lose their licenses before elections than after. This result is robust to controlling for macroeconomic and bank-specific factors, a new party in power, early elections, outstanding loans from the IMF, as well as country-specific, time-independent factors. This finding implies that much of the within-country clustering in emerging market bank failures is directly due to political concerns.

A Reexamination of Behavior in Experimental Audit Markets: The Effects of Moral Reasoning and Economic Incentives on Auditor Reporting and Fees*

Contemporary Accounting Research 2005 22(1), 229-264
Abstract This study uses experimental markets to investigate how moral reasoning influences auditor reporting under different levels of economic incentives. In each multiperiod market, auditor subjects could either (1) misreport low observed outcomes as high and thereby reap economic advantages at the expense of third‐party investors, or (2) truthfully report low observed outcomes as low but thereby forgo the economic advantages of misreporting. We extend the Calegari, Schatzberg, and Sevcik 1998 experimental‐markets setting to incorporate moral reasoning, and test hypotheses based on the economic model of Magee and Tseng 1990 and the neo‐Kohlbergian moral reasoning framework of Rest, Narvaez, Bebeau, and Thoma 1999. We document a significant effect of moral reasoning on auditor behavior. Specifically, we find that misreporting and premium fees are more likely with higher than with lower moral reasoning subjects, and the moral reasoning effect diminishes as economic penalties increase in the market. These findings provide valuable insights for specifying the determinants of auditor misreporting, the observable behaviors that signal its existence, and the institutions that can prevent its occurrence in the market. We conclude that the relation between moral reasoning and behavior is more complex than commonly assumed in the accounting literature, and identify directions for future research.

Accuracy of Simulations for Stochastic Dynamic Models

Econometrica 2005 73(6), 1939-1976 open access
This paper is concerned with accuracy properties of simulations of approximate solutions for stochastic dynamic models. Our analysis rests upon a continuity property of invariant distributions and a generalized law of large numbers. We then show that the statistics generated by any sufficiently good numerical approximation are arbitrarily close to the set of expected values of the model's invariant distributions. Also, under a contractivity condition on the dynamics, we establish error bounds. These results are of further interest for the comparative study of stationary solutions and the estimation of structural dynamic models.

An Equilibrium Model of Health Insurance Provision and Wage Determination

Econometrica 2005 73(2), 571-627
We investigate the effect of employer-provided health insurance on job mobility rates and economic welfare using a search, matching, and bargaining framework. In our model, health insurance coverage decisions are made in a cooperative manner that recognizes the productivity effects of health insurance as well as its nonpecuniary value to the employee. The resulting equilibrium is one in which not all employment matches are covered by health insurance, wages at jobs providing health insurance are larger (in a stochastic sense) than those at jobs without health insurance, and workers at jobs with health insurance are less likely to leave those jobs, even after conditioning on the wage rate. We estimate the model using the 1996 panel of the Survey of Income and Program Participation, and find that the employer-provided health insurance system does not lead to any serious inefficiencies in mobility decisions. Copyright The Econometric Society 2005.