The authors investigate the role of outside directors in the corporate-control process by exploiting variation in ownership structure within the insurance industry. In mutuals, ownership rights are not transferable. This inalienability restricts the effectiveness of control mechanisms like...

This article examines the stock-price effects of top management turnover announcements for 432 Japanese corporations from 1985 to 1990. We find that these announcements are associated with significantly positive abnormal returns. The returns are greater when turnover is forced than when turnover...

We study a sample of diversified firms that alter their organizational structure by divesting a business segment. These firms experience a reduction in the diversification discount after the divestiture. We show that the efficiency of segment investment increases substantially following the...