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Welfare Enhancing Mergers Under Product Differentiation

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Author Info
Tina Kao ()
Flavio Menezes

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Abstract

This paper considers 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.

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Paper provided by Australian National University, College of Business and Economics, School of Economics in its series ANUCBE School of Economics Working Papers with number 2009-508.

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Length: 14 Pages
Date of creation: Oct 2009
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Handle: RePEc:acb:cbeeco:2009-508

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Find related papers by JEL classification:
L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
L12 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Monopoly; Monopolization Strategies

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  1. 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. [Downloadable!] (restricted)
  2. Piercarlo Zanchettin, 2006. "Differentiated Duopoly with Asymmetric Costs," Journal of Economics & Management Strategy, Blackwell Publishing, vol. 15(4), pages 999-1015, December. [Downloadable!] (restricted)
  3. 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. [Downloadable!] (restricted)
  4. 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.
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  5. Farrell, Joseph & Shapiro, Carl, 1990. "Horizontal Mergers: An Equilibrium Analysis," American Economic Review, American Economic Association, vol. 80(1), pages 107-26, March. [Downloadable!] (restricted)
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  6. 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. [Downloadable!] (restricted)
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This page was last updated on 2009-12-6.

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