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...

"This paper examines the impact of mergers on default risk, finding that, on average, a merger increases the default risk of the acquiring firm. This is surprising for two reasons: risk reduction is among the reasons commonly cited for mergers, and asset diversification should reduce default...

"This paper examines the evolution of merger Programs, that is, repeated acquisitions by the same firm. Most acquisitions are made by firms with merger programs. Acquisitions that are part of programs are different from one-off acquisitions both in the effect on CEO compensation and in the...