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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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  • Tomaso Duso
  • Klaus Gugler
  • Burcin Yurtoglu

Abstract

We use a sample of 167 mergers during the period 1990-2002 involving 544 firms either as merging firms or competitors. We contrast a measure of the merger’s profitability based on event studies with one based on accounting data. We find positive and significant correlations between them when using a long window around the announcement date. ZUSAMMENFASSUNG - (Ist die "event study" Methodologie nützlich für die Analyse von Fusionen? Ein Vergleich von Aktienmärkte und Bilanzdaten) Wir analysieren eine Stichprobe von 167 Fusionen, die zwischen 1990 und 2002 stattgefunden haben und welche 544 Unternehmen -entweder als fusionierende Parteien oder als Wettbewerber- involviert haben. Wir vergleichen eine auf "event studies" basierende Rentabilitätsmaß der Fusion zu einer alternativen Maß, die durch Bilanzdaten konstruiert wurde. Wir finden, dass diese zwei maße positiv und signifikant korrelieren besonders wenn wir ein langes Fenster um die Fusionsankündigung in dem "event study" benutzen.

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Paper provided by Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG) in its series CIG Working Papers with number SP II 2006-19.

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Length: 15 pages
Date of creation: Sep 2006
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Handle: RePEc:wzb:wzebiv:spii2006-19

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Keywords: Mergers; Merger Control; Event Studies; Ex-post Evaluation;

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References

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  1. G. William Schwert, 1994. "Mark-Up Pricing in Mergers and Acquisitions," NBER Working Papers 4863, National Bureau of Economic Research, Inc.
  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. Gugler, Klaus & Mueller, Dennis C. & Yurtoglu, B. Burcin & Zulehner, Christine, 2003. "The effects of mergers: an international comparison," International Journal of Industrial Organization, Elsevier, vol. 21(5), pages 625-653, May.
  6. Duso, Tomaso & Gugler, Klaus & Yurtoglu, Burcin B., 2006. "EU Merger Remedies: A Preliminary Empirical Assessment," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 81, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
  7. Kaplan, Steven N & Weisbach, Michael S, 1992. " The Success of Acquisitions: Evidence from Divestitures," Journal of Finance, American Finance Association, vol. 47(1), pages 107-38, March.
  8. Eugene F. Fama, . "Market Efficiency, Long-term Returns, and Behavioral Finance," CRSP working papers 340, Center for Research in Security Prices, Graduate School of Business, University of Chicago.
  9. 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.
  10. Eckbo, B. Espen, 1983. "Horizontal mergers, collusion, and stockholder wealth," Journal of Financial Economics, Elsevier, vol. 11(1-4), pages 241-273, April.
  11. 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.
  12. Robert J. Shiller, 2002. "From Efficient Market Theory to Behavioral Finance," Cowles Foundation Discussion Papers 1385, Cowles Foundation for Research in Economics, Yale University.
  13. Duso, Tomaso & Gugler, Klaus & Yurtoglu, Burcin B., 2006. "How Effective is European Merger Control?," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 153, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
  14. 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.
  15. 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.
  16. 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.
  17. 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.
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Citations

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Cited by:
  1. Clougherty, Joseph A. & Duso, Tomaso, 2011. "Using rival effects to identify synergies and improve merger typologies," DICE Discussion Papers 25, Heinrich‐Heine‐Universität Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
  2. John J. García & Francesc Trillas, 2011. "Control corporativo y riqueza de los accionistas en el sector eléctrico europeo (2000-2007)," DOCUMENTOS DE TRABAJO CIEF 010660, UNIVERSIDAD EAFIT.
  3. 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).
  4. John J. García & Francesc Trillas, 2012. "Regulatory Reform and Corporate Control in European Energy Industries," DOCUMENTOS DE TRABAJO CIEF 010664, UNIVERSIDAD EAFIT.
  5. 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.
  6. Budzinski, Oliver, 2012. "Empirische Ex-Post Evaluation von wettbewerbspolitischen Entscheidungen: Methodische Anmerkungen," Ilmenau Economics Discussion Papers 69, Ilmenau University of Technology, Institute of Economics.
  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. "Impact evaluation of merger control decisions," Ilmenau Economics Discussion Papers 75, Ilmenau University of Technology, Institute of Economics.
  9. Oliver Budzinski, 2011. "Impact Evaluation of Merger Decisions," Working Papers 112/11, University of Southern Denmark, Department of Environmental and Business Economics.
  10. 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.
  11. 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.

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