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Competition For Market Share Or For Market Size: Oligopolistic Equilibria With Varying Competitive Toughness

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Author Info
Claude d'Aspremont
Rodolphe Dos Santos Ferreira
Louis-André Gérard-Varet

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Abstract

For an industry producing a composite commodity, we propose a comprehensive concept of oligopolistic equilibrium, allowing for a parameterized continuum of regimes varying in competitive toughness. Each firm sets simultaneously its price and its quantity under two constraints, relative to its market share and to market size. The price and the quantity equilibrium outcomes always belong to the set of oligopolistic equilibria. When firms are identical and we let their number increase, any sequence of symmetric oligopolistic equilibria converges to the monopolistic competition outcome. Further results are derived in the symmetric CES case, concerning in particular the collusive solution enforceability. Copyright 2007 by the Economics Department Of The University Of Pennsylvania And Osaka University Institute Of Social And Economic Research Association.

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File URL: http://www.blackwell-synergy.com/doi/abs/10.1111/j.1468-2354.2007.00444.x
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Article provided by Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association in its journal International Economic Review.

Volume (Year): 48 (2007)
Issue (Month): 3 (08)
Pages: 761-784
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Handle: RePEc:ier:iecrev:v:48:y:2007:i:3:p:761-784

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  4. Dixit, Avinash K, 1986. "Comparative Statics for Oligopoly," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 27(1), pages 107-22, February. [Downloadable!] (restricted)
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  7. Jan Boone, 2000. "Competitive Pressure: The Effects on Investments in Product and Process Innovation," RAND Journal of Economics, The RAND Corporation, vol. 31(3), pages 549-569, Autumn.
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  9. Shapiro, Carl, 1989. "Theories of oligopoly behavior," Handbook of Industrial Organization, in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 1, chapter 6, pages 329-414 Elsevier. [Downloadable!] (restricted)
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  11. d'Aspremont, C & Ferreira, R Dos Santos & Gerard-Varet, L-A, 1991. "Pricing Schemes and Cournotian Equilibria," American Economic Review, American Economic Association, vol. 81(3), pages 666-73, June. [Downloadable!] (restricted)
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  14. Eaton, Jonathan & Grossman, Gene M, 1986. "Optimal Trade and Industrial Policy under Oligopoly," The Quarterly Journal of Economics, MIT Press, vol. 101(2), pages 383-406, May. [Downloadable!] (restricted)
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  15. Fershtman, Chaim & Judd, Kenneth L, 1987. "Equilibrium Incentives in Oligopoly," American Economic Review, American Economic Association, vol. 77(5), pages 927-40, December. [Downloadable!] (restricted)
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  16. Charles A. Holt & David T. Scheffman, 1987. "Facilitating Practices: The Effects of Advance Notice and Best-Price Policies," RAND Journal of Economics, The RAND Corporation, vol. 18(2), pages 187-197, Summer. [Downloadable!] (restricted)
  17. Dixit, Avinash K & Stiglitz, Joseph E, 1977. "Monopolistic Competition and Optimum Product Diversity," American Economic Review, American Economic Association, vol. 67(3), pages 297-308, June. [Downloadable!] (restricted)
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  18. Rotemberg, Julio J & Woodford, Michael, 1992. "Oligopolistic Pricing and the Effects of Aggregate Demand on Economic Activity," Journal of Political Economy, University of Chicago Press, vol. 100(6), pages 1153-1207, December. [Downloadable!] (restricted)
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  19. van de Klundert, Theo & Smulders, Sjak, 1997. " Growth, Competition and Welfare," Scandinavian Journal of Economics, Blackwell Publishing, vol. 99(1), pages 99-118, March. [Downloadable!] (restricted)
  20. Aghion, Philippe & Harris, Christopher & Vickers, John, 1997. "Competition and growth with step-by-step innovation: An example," European Economic Review, Elsevier, vol. 41(3-5), pages 771-782, April. [Downloadable!] (restricted)
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(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. D'ASPREMONT, Claude & DOS SANTOS FERREIRA, Rodolphe & GERARD-VARET, Louis-AndrŽ, 2004. "Strategic R&D investment, competitive toughness and growth," CORE Discussion Papers 2004014, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE). [Downloadable!]
  2. Claude d’Aspremont & Rodolphe Dos Santos Ferreira, 2009. "Household behavior and individual autonomy," Working Papers of BETA 2009-17, Bureau d'Economie Théorique et Appliquée, ULP, Strasbourg. [Downloadable!]
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