We determine firms' equity ownership structures and provide a theory of hostile takeovers by distinguishing the roles of two types of blockholders: rich investors and institutional investors. We also distinguish the roles of two types of stock markets: the block market and the market with small...

In this paper, we present a model of defensive mergers and merger waves. We argue that mergers and merger waves can occur when managers prefer that their firms remain independent rather than be acquired. We assume that managers can reduce their chance of being acquired by acquir-ing another firm...