TY - JOUR AU - Shleifer,Andrei AU - Vishny,Robert W. TI - Stock Market Driven Acquisitions JF - National Bureau of Economic Research Working Paper Series VL - No. 8439 PY - 2001 Y2 - August 2001 UR - http://www.nber.org/papers/w8439 L1 - http://www.nber.org/papers/w8439.pdf N1 - Author contact info: Andrei Shleifer Department of Economics Harvard University Littauer Center M-9 Cambridge, MA 02138 Tel: 617/495-5046 Fax: 617/496-1708 E-Mail: ashleifer@harvard.edu Robert W. Vishny Booth School of Business The University of Chicago 5807 South Woodlawn Avenue Chicago, IL 60637 Tel: 773/702-2522 Fax: 773/834-1920 E-Mail: Rvishny@gmail.com AB - We present a model of mergers and acquisitions based on stock market misvaluations of the combining firms. The key ingredients of the model are the relative valuations of the merging firms, the horizons of their respective managers, and the market's perception of the synergies from the combination. The model explains who acquirers whom, whether the medium of payment is cash or stock, what are the valuation consequences of mergers, and why there are merger waves. The model is consistent with available empirical findings about characteristics and returns of merging firms, and yields new predictions as well. ER -