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How Mergers A ffect Innovation: Theory and Evidence

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  • Stiebale, Joel
  • Haucap, Justus

Abstract

This papers analyses how horizontal mergers affect innovation activities of the merged entity and its non-merging competitors. We develop an oligopoly model with heterogeneous firms to derive empirically testable implications. Our model predicts that a merger is more likely to be profitable in an innovation intensive industry. For a high degree of firm heterogeneity a merger reduces innovation in both the merged entity and in non-merging competitors in an industry with high R\&D intensity. Using data on horizontal mergers among pharmaceutical firms in Europe, we find that our econometric results are consistent with many predictions of the theoretical model. Our main result is that after a merger patenting and R\&D of the merged entity and its non-merging rivals declines substantially. The results are robust towards alternative specifications and using an instrumental variable strategy. --

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Paper provided by Verein für Socialpolitik / German Economic Association in its series Annual Conference 2013 (Duesseldorf): Competition Policy and Regulation in a Global Economic Order with number 79831.

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Date of creation: 2013
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Handle: RePEc:zbw:vfsc13:79831

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Web page: http://www.socialpolitik.org/
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  1. Joseph A. Clougherty & Tomaso Duso, 2009. "The Impact of Horizontal Mergers on Rivals: Gains to Being Left Outside a Merger," Journal of Management Studies, Wiley Blackwell, vol. 46(8), pages 1365-1395, December.
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  5. Duso, Tomaso & Gugler, Klaus & Yurtoglu, Burcin B., 2006. "Is the Event Study Methodology Useful for Merger Analysis? A Comparison of Stock Market and Accounting Data," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 163, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
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  13. Salant, Stephen W & Switzer, Sheldon & Reynolds, Robert J, 1983. "Losses from Horizontal Merger: The Effects of an Exogenous Change in Industry Structure on Cournot-Nash Equilibrium," The Quarterly Journal of Economics, MIT Press, vol. 98(2), pages 185-99, May.
  14. Crepon, Bruno & Duguet, Emmanuel, 1997. "Estimating the Innovation Function from Patent Numbers: GMM on Count Panel Data," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 12(3), pages 243-63, May-June.
  15. Werden, Gregory J., 1988. "The divergence of SIC industries from antitrust markets : Some evidence from price fixing cases," Economics Letters, Elsevier, vol. 28(2), pages 193-197.
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