Large shareholders may play an important role for firm performance and policies, but identifying this empirically presents a challenge due to the endogeneity of ownership structures. We develop and test an empirical framework which allows us to separate selection from treatment effects of large...

We analyze the effects of heterogeneity across large shareholders, using a new blockholder-firm panel dataset in which we can track all unique blockholders among large public firms in the United States. We find statistically significant and economically important blockholder fixed effects in...

This dissertation comprises two essays oncorporate governance. The second essay, "Founder-CEOs and Stock MarketPerformance," compares the stock market performance of firms headed byfounder-CEO firms with successor-CEO firms. Eleven percent of the largest U.S.public firms are headed by their...

We study changes in the design of CEO contracts when firms transition from being public with dispersed ownership to being private with strong principals in the form of private equity sponsors. These principals redesign many, but far from all, contract features. There is no evidence that they...

From 1988 to 2003, the average change in managerial ownership is significantly negative every year for American firms. The probability of large decreases in ownership is strongly increasing in contemporaneous and past stock returns but the probability of large increases in ownership through...