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Cournot Oligopoly Conditions under which Any Horizontal Merger Is Profitable

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  • David Hennessy

Abstract

Findings in economic theory suggest that horizontal mergers involving firms with aggregate market share less than 50% are unlikely to be motivated by the consequent reduction in competitivity. The results arise because, absent cost efficiencies, quantity-setting firms in small mergers are impoverished by the merger. We demonstrate that this conclusion is a consequence of the strong restrictions imposed on the demand function, and we identify a well-behaved demand function such that any set of merging firms benefits from the reduction in competition even when there are no cost efficiencies.

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File URL: http://hdl.handle.net/10.1023/A:1007804129800
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Bibliographic Info

Article provided by Springer in its journal Review of Industrial Organization.

Volume (Year): 17 (2000)
Issue (Month): 3 (November)
Pages: 277-284

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Handle: RePEc:kap:revind:v:17:y:2000:i:3:p:277-284

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Web page: http://www.springerlink.com/link.asp?id=100336

Related research

Keywords: Demand function; endogenous merger; equilibrium; market power;

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References

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  1. Kamien, Morton I. & Zang, Israel, 1991. "Competitively cost advantageous mergers and monopolization," Games and Economic Behavior, Elsevier, vol. 3(3), pages 323-338, August.
  2. Farrell, Joseph & Shapiro, Carl, 1990. "Horizontal Mergers: An Equilibrium Analysis," American Economic Review, American Economic Association, vol. 80(1), pages 107-26, March.
  3. Cheung, Francis K., 1992. "Two remarks on the equilibrium analysis of horizontal merger," Economics Letters, Elsevier, vol. 40(1), pages 119-123, September.
  4. Kamien, Morton I & Zang, Israel, 1990. "The Limits of Monopolization through Acquisition," The Quarterly Journal of Economics, MIT Press, vol. 105(2), pages 465-99, May.
  5. 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.
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Citations

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Cited by:
  1. Oliver Budzinski & Jürgen-Peter Kretschmer, 2007. "Implications of Unprofitable Horizontal Mergers: A Re-Interpretation of the Farrell-Shapiro-Framework," Marburg Working Papers on Economics 200714, Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung).
  2. Huck, S. & Konrad, K.A. & Müller, W., 2005. "Merger Without Costs Advantage," Discussion Paper 2005-019, Tilburg University, Tilburg Law and Economic Center.
  3. Marina Tsygankova, 2007. "When is Mighty Gazprom Good for Russia?," Discussion Papers 526, Research Department of Statistics Norway.
  4. R. Cellini & L. Lambertini, 2003. "Capital Accumulation and Horizontal Mergers in Differential Oligopoly Games," Working Papers 477, Dipartimento Scienze Economiche, Universita' di Bologna.
  5. Le Pape, Nicolas & Zhao, Kai, 2013. "Horizontal mergers and uncertainty," Economics Discussion Papers 2013-62, Kiel Institute for the World Economy.
  6. Tina Kao & Flavio Menezes, 2010. "Welfare-Enhancing Mergers Under Product Differentiation," Manchester School, University of Manchester, vol. 78(4), pages 290-301, 07.
  7. Jacek Prokop, 2009. "Monopolisation of triopoly – revisited," International Journal of Computational Economics and Econometrics, Inderscience Enterprises Ltd, vol. 1(2), pages 113-125.
  8. Oliver Budzinski & Jürgen-Peter Kretschmer, 2009. "Implications of Unprofitable Horizontal Mergers: A Positive External Effect does not Suffice to Clear a Merger!," Working Papers 84/09, University of Southern Denmark, Department of Environmental and Business Economics.
  9. Zhou, Wen, 2008. "Endogenous horizontal mergers under cost uncertainty," International Journal of Industrial Organization, Elsevier, vol. 26(4), pages 903-912, July.
  10. D. Dragone & L. Lambertini & A. Mantovani, 2007. "Antitrust Guidelines: A Simple Operational Method for Evaluating Horizontal Mergers," Working Papers 591, Dipartimento Scienze Economiche, Universita' di Bologna.
  11. Tsygankova, Marina, 2010. "When is a break-up of Gazprom good for Russia?," Energy Economics, Elsevier, vol. 32(4), pages 908-917, July.
  12. D. Dragone & L. Lambertini & A. Mantovani, 2006. "Horizontal Mergers with Scale Economies," Working Papers 571, Dipartimento Scienze Economiche, Universita' di Bologna.

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