We survey theoretical and empirical research on antitakeover provisions, focusing on the relation between antitakeover provisions and shareholder value. We divide the empirical studies based upon the evidence that they provide: short-term event studies, studies on performance and policy changes around adopting antitakeover provisions or passing state antitakeover laws, studies on the impact of antitakeover provisions on takeovers, studies on the relation between antitakeover provisions and firm characteristics, and long-term studies on the relation between antitakeover provisions and firm performance or policies. We also discuss the place of antitakeover provisions in the current debate about “good governance” practices.

We study the value gains from takeovers of firms with poor acquisition histories. We document that the premium received by target shareholders is higher when the value loss from the targets’ prior acquisitions is larger. However, the gains to target shareholders seem to be offset by losses to acquiring shareholders. The average announcement return to acquiring shareholders is negative and decreasing in the value loss from the targets’ prior acquisitions. Additionally, the combined acquirer-target value created in these takeovers is insignificant. These results suggest that the value lost from targets’ prior acquisitions is not recovered through changes in corporate control.

We examine shareholder litigation and the price and nonprice terms of bank loan contracts. After filing a lawsuit, defendant firms pay higher loan spreads and up-front charges, experience more financial covenants, and are more likely to have a collateral requirement. These findings are consistent with reputational losses associated with shareholder litigation. The magnitude of a firm’s lost market value when the lawsuit is filed is positively related to the increase in the firm’s future borrowing costs. We investigate whether the lawsuit allegations and its merit affect future bank loan terms. Our results do not appear to be affected by self-selection.