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Is the event study methodology useful for merger analysis? A comparison of stock market and accounting data

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  • Duso, Tomaso
  • Gugler, Klaus
  • Yurtoglu, Burcin

Abstract

This paper presents empirical evidence about the ability of event studies to capture mergers' ex-post profitability as measured by accounting data. We use a sample of large horizontal concentrations during the period 1990-2002 involving 482 firms either as merging firms or competitors, and contrast a measure of the mergers' profitability based on stock market event studies with one based on balance sheet profit data. We show that using a long window around the announcement date (25 or 50 days before the event) increases the ability to capture the ex-post merger effect: the pairwise correlation coefficient is positive and highly significant.

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Bibliographic Info

Article provided by Elsevier in its journal International Review of Law and Economics.

Volume (Year): 30 (2010)
Issue (Month): 2 (June)
Pages: 186-192

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Handle: RePEc:eee:irlaec:v:30:y:2010:i:2:p:186-192

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Web page: http://www.elsevier.com/locate/irle

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Keywords: Mergers Merger control Event studies Ex-post evaluation;

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References

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  1. Gregor Andrade & Mark Mitchell & Erik Stafford, 2001. "New Evidence and Perspectives on Mergers," Journal of Economic Perspectives, American Economic Association, vol. 15(2), pages 103-120, Spring.
  2. Aboody, David & Kasznik, Ron & Williams, Michael, 2000. "Purchase versus pooling in stock-for-stock acquisitions: Why do firms care?," Journal of Accounting and Economics, Elsevier, vol. 29(3), pages 261-286, June.
  3. Bengt Holmstrom & Steven N. Kaplan, 2001. "Corporate Governance and Merger Activity in the United States: Making Sense of the 1980s and 1990s," Journal of Economic Perspectives, American Economic Association, vol. 15(2), pages 121-144, Spring.
  4. Goergen, Marc & Renneboog, Luc, 2003. "Shareholder Wealth Effects of European Domestic and Cross-Border Takeover Bids," EIFC - Technology and Finance Working Papers 20, United Nations University, Institute for New Technologies.
  5. Robert J. Shiller, 2003. "From Efficient Markets Theory to Behavioral Finance," Journal of Economic Perspectives, American Economic Association, vol. 17(1), pages 83-104, Winter.
  6. Kasznik, Ron & Aboody, David & Williams, Michael, 2000. "Purchase versus Pooling in Stock-for-Stock Acquisitions: Why Do Firms Care?," Research Papers 1614, Stanford University, Graduate School of Business.
  7. Fama, Eugene F., 1998. "Market efficiency, long-term returns, and behavioral finance," Journal of Financial Economics, Elsevier, vol. 49(3), pages 283-306, September.
  8. Steven Kaplan & Michael S. Weisbach, 1990. "The Success of Acquisitions: Evidence From Disvestitures," NBER Working Papers 3484, National Bureau of Economic Research, Inc.
  9. Klaus Gugler & Dennis C. Mueller & B. Burcin Yurtoglu & Christine Zulehner, 2001. "The Effects of Mergers: An International Comparison," CIG Working Papers FS IV 01-21, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
  10. Duso, Tomaso & Gugler, Klaus & Yurtoglu, Burcin B., 2011. "How effective is European merger control?," European Economic Review, Elsevier, vol. 55(7), pages 980-1006.
  11. Healy, Paul M. & Palepu, Krishna G. & Ruback, Richard S., 1992. "Does corporate performance improve after mergers?," Journal of Financial Economics, Elsevier, vol. 31(2), pages 135-175, April.
  12. Tomaso Duso & Klaus Gugler & Burcin Yurtoglu, 2005. "EU Merger Remedies: A Preliminary Empirical Assessment," CIG Working Papers SP II 2005-16, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
  13. Caves, Richard E., 1989. "Mergers, takeovers, and economic efficiency : Foresight vs. hindsight," International Journal of Industrial Organization, Elsevier, vol. 7(1), pages 151-174, March.
  14. Eckbo, B. Espen, 1983. "Horizontal mergers, collusion, and stockholder wealth," Journal of Financial Economics, Elsevier, vol. 11(1-4), pages 241-273, April.
  15. Dennis C. Mueller & B. Burcin Yurtoglu, 2007. "Corporate governance and the returns to acquiring firms' shareholders: an international comparison," Managerial and Decision Economics, John Wiley & Sons, Ltd., vol. 28(8), pages 879-896.
  16. Malatesta, Paul H., 1983. "The wealth effect of merger activity and the objective functions of merging firms," Journal of Financial Economics, Elsevier, vol. 11(1-4), pages 155-181, April.
  17. Schwert, G.W., 1994. "Mark-up Pricing in Mergers and Acquisitions," Papers 95-01, Rochester, Business - Financial Research and Policy Studies.
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Cited by:
  1. John García & Francesc Trillas, 2011. "Control corporativo y riqueza de los accionistas en el sector eléctrico europeo (2000-2007)," Revista de Economía Institucional, Universidad Externado de Colombia - Facultad de Economía, vol. 13(25), pages 297-319, July-Dece.
  2. Oliver Budzinski, 2011. "Impact Evaluation of Merger Decisions," Working Papers 112/11, University of Southern Denmark, Department of Environmental and Business Economics.
  3. Joseph A. Clougherty & Tomaso Duso, 2010. "Using Rival Effects to Identify Synergies and Improve Merger Typologies," CIG Working Papers SP II 2010-13, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
  4. Tomaso Duso & Klaus Gugler & Florian Szücs, 2010. "An Empirical Assessment of the 2004 EU Merger Policy Reform," CIG Working Papers SP II 2010-16, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
  5. John J. García and Francesc Trillas, 2012. "Regulatory Reform and Corporate Control in European Energy Industries," RSCAS Working Papers 2012/30, European University Institute.
  6. Warell, Linda, 2007. "A horizontal merger in the iron ore industry: An event study approach," Resources Policy, Elsevier, vol. 32(4), pages 191-204, December.
  7. John J. García & Francesc Trillas, 2013. "European energy industry shocks, corporate control and firms' value," DOCUMENTOS DE TRABAJO CIEF 010928, UNIVERSIDAD EAFIT.
  8. Budzinski, Oliver, 2012. "Empirische Ex-Post Evaluation von wettbewerbspolitischen Entscheidungen: Methodische Anmerkungen," Ilmenau Economics Discussion Papers 69, Ilmenau University of Technology, Institute of Economics.
  9. Stiebale, Joel & Haucap, Justus, 2013. "How Mergers A ffect Innovation: Theory and Evidence," Annual Conference 2013 (Duesseldorf): Competition Policy and Regulation in a Global Economic Order 79831, Verein für Socialpolitik / German Economic Association.
  10. Budzinski, Oliver, 2012. "Impact evaluation of merger control decisions," Ilmenau Economics Discussion Papers 75, Ilmenau University of Technology, Institute of Economics.
  11. Kamerbeek, S.P., 2009. "Merger Performance and Efficiencies in Horizontal Merger Policy in the US and the EU," MPRA Paper 18064, University Library of Munich, Germany.

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