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A General Theory of Endogenous Market Structures

Author

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  • Paolo Bertoletti

    () (Department of Economics and Management, University of Pavia)

  • Federico Etro

    () (Department of Economics, University of Venice Ca' Foscari)

Abstract

We provide a unified approach to imperfect (monopolistic, Bertrand and Cournot) competition equilibria with demand functions derived from symmetric preferences over a large but finite number of goods. The equilibrium markups depend on the Morishima Elasticity of Substitution/Complementarity between goods, and can be derived directly from the utility functions and ranked unambiguously. We characterize the endogenous market structures, their dependence on market size, income and firms’ productivity and compare them with the optimal allocations. Finally, we apply our results to the case of preferences such as Generalized Leontief, Generalized linear and Generalized quadratic that we introduce in the literature on imperfect competition.

Suggested Citation

  • Paolo Bertoletti & Federico Etro, 2014. "A General Theory of Endogenous Market Structures," DEM Working Papers Series 081, University of Pavia, Department of Economics and Management.
  • Handle: RePEc:pav:demwpp:demwp0081
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    Citations

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    Cited by:

    1. Poutineau, Jean-Christophe & Vermandel, Gauthier, 2015. "Financial frictions and the extensive margin of activity," Research in Economics, Elsevier, vol. 69(4), pages 525-554.
    2. Claude d’Aspremont & Rodolphe Dos Santos Ferreira, 2016. "Oligopolistic vs. monopolistic competition: Do intersectoral effects matter?," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 62(1), pages 299-324, June.
    3. Boucekkine, Raouf & Latzer, Hélène & Parenti, Mathieu, 2017. "Variable markups in the long-run: A generalization of preferences in growth models," Journal of Mathematical Economics, Elsevier, vol. 68(C), pages 80-86.
    4. de Pinto Marco & Goerke Laszlo, 2019. "Efficiency Wages in Cournot-Oligopoly," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 19(4), pages 1-13, October.
    5. Etro, Federico & Rossi, Lorenza, 2015. "Optimal monetary policy under Calvo pricing with Bertrand competition," Journal of Macroeconomics, Elsevier, vol. 45(C), pages 423-440.
    6. Jung, Jae Wook & Simonovska, Ina & Weinberger, Ariel, 2019. "Exporter heterogeneity and price discrimination: A quantitative view," Journal of International Economics, Elsevier, vol. 116(C), pages 103-124.
    7. Brander, James A. & Spencer, Barbara J., 2015. "Intra-industry trade with Bertrand and Cournot oligopoly: The role of endogenous horizontal product differentiation," Research in Economics, Elsevier, vol. 69(2), pages 157-165.
    8. Chin-Sheng Chen, 2017. "Endogenous Market Structure and Technology Licensing," The Japanese Economic Review, Japanese Economic Association, vol. 68(1), pages 115-130, March.
    9. Etro, Federico & Rossi, Lorenza, 2015. "New-Keynesian Phillips curve with Bertrand competition and endogenous entry," Journal of Economic Dynamics and Control, Elsevier, vol. 51(C), pages 318-340.
    10. Dia, Enzo & VanHoose, David, 2018. "Fixed costs and capital regulation: Impacts on the structure of banking markets and aggregate loan quality," Journal of Financial Stability, Elsevier, vol. 36(C), pages 53-65.

    More about this item

    Keywords

    Monopolistic Competition; Imperfect Competition; Elasticity of Substitution; Free Entry;

    JEL classification:

    • D11 - Microeconomics - - Household Behavior - - - Consumer Economics: Theory
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms

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