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Welfare-Enhancing Mergers Under Product Differentiation

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  • TINA KAO
  • FLAVIO MENEZES

Abstract

In this paper we consider a model of duopoly with differentiated products to examine the welfare effects of a merger between two asymmetric firms. We find that, for quantity competition, the parameter range for welfare-enhancing merger widens if the products are closer substitutes. On the other hand, mergers are never welfare enhancing in this setting when firms compete in prices. Copyright � 2010 The Authors. Journal compilation � 2010 Blackwell Publishing Ltd and The University of Manchester.

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Bibliographic Info

Article provided by University of Manchester in its journal The Manchester School.

Volume (Year): 78 (2010)
Issue (Month): 4 (07)
Pages: 290-301

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Handle: RePEc:bla:manchs:v:78:y:2010:i:4:p:290-301

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  1. Joseph Farrell and Carl Shapiro., 1988. "Horizontal Mergers: An Equilibrium Analysis," Economics Working Papers 8880, University of California at Berkeley.
  2. Hackner, Jonas, 2000. "A Note on Price and Quantity Competition in Differentiated Oligopolies," Journal of Economic Theory, Elsevier, vol. 93(2), pages 233-239, August.
  3. Hennessy, David A., 2000. "Cournot Oligopoly Conditions Under Which Any Horizontal Merger is Profitable," Staff General Research Papers 1699, Iowa State University, Department of Economics.
  4. Perry, Martin K & Porter, Robert H, 1985. "Oligopoly and the Incentive for Horizontal Merger," American Economic Review, American Economic Association, vol. 75(1), pages 219-27, March.
  5. Motta,Massimo, 2004. "Competition Policy," Cambridge Books, Cambridge University Press, number 9780521016919, April.
  6. Piercarlo Zanchettin, 2006. "Differentiated Duopoly with Asymmetric Costs," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 15(4), pages 999-1015, December.
  7. Nirvikar Singh & Xavier Vives, 1984. "Price and Quantity Competition in a Differentiated Duopoly," RAND Journal of Economics, The RAND Corporation, vol. 15(4), pages 546-554, Winter.
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