TY - JOUR AU - Moeller,Sara B. AU - Schlingemann,Frederik P. AU - Stulz,Rene M. TI - Do shareholders of acquiring firms gain from acquisitions? JF - National Bureau of Economic Research Working Paper Series VL - No. 9523 PY - 2003 Y2 - March 2003 UR - http://www.nber.org/papers/w9523 L1 - http://www.nber.org/papers/w9523.pdf N1 - Author contact info: Sara B. Moeller Katz Graduate School of Business University of Pittsburgh 360 Mervis Hall Pittsburgh, PA 15260 E-Mail: sbmoeller@katz.pitt.edu Frederik P. Schlingemann Katz Graduate School of Business University of Pittsburgh 372 Mervis Hall Pittsburgh, PA 15260 E-Mail: schlinge@katz.pitt.edu Rene M. Stulz The Ohio State University Fisher College of Business 806A Fisher Hall Columbus, OH 43210-1144 Tel: 614/292-1970 Fax: 614/292-2359 E-Mail: stulz_1@cob.osu.edu AB - We examine a sample of 12,023 acquisitions by public firms from 1980 to 2001. Shareholders of these firms lost a total of $218 billion when acquisitions were announced. Though shareholders lose throughout our sample period, losses associated with acquisition announcements after 1997 are dramatic. Small firms gain from acquisitions, so that shareholders of small firms gained $8 billion when acquisitions were announced and shareholders of large firms lost $226 billion. We examine the cross-sectional variation in the announcement returns of acquisitions. Small firm shareholders earn systematically more when acquisitions are announced. This size effect is typically more important than how an acquisition is financed and than the organizational form of the assets acquired. The only acquisitions that have positive aggregate gains are acquisitions of subsidiaries. ER -