Stock Returns in Mergers and Acquisitions
Ecole Polytechnique Fédérale de Lausanne; Swiss Finance Institute
Boston University Questrom School of Business
Swiss Finance Institute Research Paper No. 06-1
EFA 2006 Zurich Meetings Paper
This paper develops a real options framework to analyze the behavior of stock returns in mergers and acquisitions. In this framework, the timing and terms of takeovers are endogenous and result from value-maximizing decisions. The implications of the model for abnormal announcement returns are consistent with the available empirical evidence. In addition, the model generates new predictions regarding the dynamics of firm-level betas for the time period surrounding control transactions. Using a sample of 1090 takeovers of publicly traded US firms between 1985 and 2002, we present new evidence on the dynamics of firm-level betas, which is strongly supportive of the model's predictions.
Number of Pages in PDF File: 44
Keywords: takeovers, real options, stock returns, firm-level betas
JEL Classification: G13, G14, G31, G34
Date posted: March 3, 2006
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