Empirical Studies of Corporate Law
HANDBOOK OF LAW AND ECONOMICS, A. Mitchell Polinsky and Steven Shavell, Forthcoming
Yale ICF Working Paper No. 05-16
ECGI - Finance Working Paper Forthcoming
European Corporate Governance Institute (ECGI) - Law Working Paper No. 44/2005
118 Pages Posted: 27 May 2005 Last revised: 13 Nov 2018
Abstract
This chapter reviews the empirical literature, especially the event study literature, as it relates to corporate and securities law. Event studies are among the most successful uses of econometrics in policy analysis. By providing an anchor for measuring the impact of events on investor wealth, the methodology offers a fruitful means for evaluating the welfare implications of private and government actions. This chapter begins by briefly reviewing the event study methodology and its strengths and limitations for policy analysis. It then discusses one of the limitations of more conventional empirical work (cross-sectional analysis), the problem presented by the fact that the characteristics of firms that are studied in relation to each other (such as ownership and mechanisms of corporate governance) or to firm performance are not exogenous but self-selected by firms. Thereafter it reviews in detail how event studies have been used to evaluate the wealth effects of corporate litigation. Subsequently, we focus on the methodology's application to corporate law and corporate governance issues, supplemented with discussion of other relevant empirical work as well. Event studies are emphasized because they have played an important role in the making of corporate law and in applied corporate finance and corporate law scholarship. The reason for this input is twofold. First, there is a match between the methodology and subject matter: the goal of corporate law is to increase shareholder wealth and event studies provide a metric for measurement of the impact upon stock prices of policy decisions. Second, because the participants in corporate law debates share the objective of corporate law, to adopt policies that enhance shareholder wealth, their disagreements are over the means to achieve that end. A further reason for emphasizing event study data is that they avoid the endogeneity concerns that can limit the results of other modes of empirical research in this area. Because the empirical literature related to corporate and securities law is vast, the chapter is necessarily selective and omits important topics and individual contributions in the field.
Keywords: event studies, corporate governance, empirical research in corporate law
JEL Classification: G14, G34, K22
Suggested Citation: Suggested Citation
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