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Cournot, Bertrand or Chamberlin: Toward a reconciliation

Author

Listed:
  • Mathieu Parenti
  • Alexander V. Sidorov
  • Jacques-François Thisse
  • Evgeny V. Zhelobodko
Abstract
The purpose of this paper is to provide a comparison of three types of competition in a differentiated industry: Cournot, Bertrand, and monopolistic competition. This is accomplished in an economy involving one sector and a population of consumers endowed with separable preferences and a given number of labor units. When firms are free to enter the market, monopolistically competitive firms charge lower prices than oligopolistic firms, while the mass of varieties provided by the market is smaller under the former than the latter. If the economy is sufficiently large, Cournot, Bertrand and Chamberlin solutions converge toward the same market outcome, which may be a competitive or a monopolistically competitive equilibrium, depending on the nature of preferences
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Suggested Citation

  • Mathieu Parenti & Alexander V. Sidorov & Jacques-François Thisse & Evgeny V. Zhelobodko, 2017. "Cournot, Bertrand or Chamberlin: Toward a reconciliation," International Journal of Economic Theory, The International Society for Economic Theory, vol. 13(1), pages 29-45, March.
    • Handle: RePEc:bla:ijethy:v:13:y:2017:i:1:p:29-45
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    File URL: http://hdl.handle.net/10.1111/ijet.12116
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    References listed on IDEAS

    as
    1. Jaskold Gabszewicz, Jean & Vial, Jean-Philippe, 1972. "Oligopoly "A la cournot" in a general equilibrium analysis," Journal of Economic Theory, Elsevier, vol. 4(3), pages 381-400, June.
    2. Roberts, John & Sonnenschein, Hugo, 1977. "On the Foundations of the Theory of Monopolistic Competition," Econometrica, Econometric Society, vol. 45(1), pages 101-113, January.
    3. d'Aspremont, Claude & Dos Santos Ferreira, Rodolphe & Gerard-Varet, Louis-Andre, 1996. "On the Dixit-Stiglitz Model of Monopolistic Competition," American Economic Review, American Economic Association, vol. 86(3), pages 623-629, June.
    4. Evgeny Zhelobodko & Sergey Kokovin & Mathieu Parenti & Jacques‐François Thisse, 2012. "Monopolistic Competition: Beyond the Constant Elasticity of Substitution," Econometrica, Econometric Society, vol. 80(6), pages 2765-2784, November.
    5. Evgeny Zhelobodko & Sergey Kokovin & Mathieu Parenti & Jacques-François Thisse, 2011. "Monopolistic competition in general equilibrium: Beyond the CES," PSE Working Papers halshs-00566431, HAL.
    6. 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.
    7. Novshek, William & Chowdhury, Prabal Roy, 2003. "Bertrand equilibria with entry: limit results," International Journal of Industrial Organization, Elsevier, vol. 21(6), pages 795-808, June.
    8. Behrens, Kristian & Murata, Yasusada, 2007. "General equilibrium models of monopolistic competition: A new approach," Journal of Economic Theory, Elsevier, vol. 136(1), pages 776-787, September.
    9. William Novshek, 1980. "Cournot Equilibrium with Free Entry," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 47(3), pages 473-486.
    10. Norman, George & Thisse, Jacques-Francois, 1996. "Product Variety and Welfare under Tough and Soft Pricing Regimes," Economic Journal, Royal Economic Society, vol. 106(434), pages 76-91, January.
    11. Joan Robinson, 1934. "What is Perfect Competition?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 49(1), pages 104-120.
    12. Vives, Xavier, 1985. "On the efficiency of Bertrand and Cournot equilibria with product differentation," Journal of Economic Theory, Elsevier, vol. 36(1), pages 166-175, June.
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    Citations

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    Cited by:

    1. Kenji Fujiwara, 2022. "Cournot, Bertrand or Chamberlin: Market Structures and the Home Market Effect," Discussion Paper Series 235, School of Economics, Kwansei Gakuin University.
    2. d’Aspremont, Claude & Dos Santos Ferreira, Rodolphe, 2017. "The Dixit–Stiglitz economy with a ‘small group’ of firms: A simple and robust equilibrium markup formula," Research in Economics, Elsevier, vol. 71(4), pages 729-739.
    3. Ribeiro, Andre F., 2021. "Competition, Diversity and Quality," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 568(C).
    4. Commendatore, Pasquale & Kubin, Ingrid & Sushko, Iryna, 2022. "Big or small? A new economic geography model with an endogenous switch in the market structure," Chaos, Solitons & Fractals, Elsevier, vol. 161(C).
    5. Marie-Laure Cabon-Dhersin & Nicolas Drouhin, 2020. "Soft-Capacity constrained price competition with entry and a minimum firm size: Chamberlin without differentiation," Working Papers hal-02909801, HAL.
    6. Burak Dindaroglu, 2023. "Product design in monopolistic competition," International Journal of Economic Theory, The International Society for Economic Theory, vol. 19(3), pages 471-488, September.
    7. Niroth Chhy, 2018. "A Simple Extension to the Dixit-Stiglitz Framework to Allow for Strategic Interaction," Economics Bulletin, AccessEcon, vol. 38(2), pages 1187-1197.
    8. Fujiwara, Kenji, 2023. "Market structure and industry location in a footloose capital model," Research in Economics, Elsevier, vol. 77(2), pages 275-283.

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    More about this item

    JEL classification:

    • D41 - Microeconomics - - Market Structure, Pricing, and Design - - - Perfect Competition
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies; Fragmentation
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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