and

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 exogeneous 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 methodolog