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A note on market power in bilateral oligopoly

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  • Ludovic A. Julien

    (EconomiX - EconomiX - UPN - Université Paris Nanterre - CNRS - Centre National de la Recherche Scientifique)

Abstract

In this note we consider a simple bilateral oligopoly model of an exchange economy. We characterize the Cournot-Nash equilibrium and we explore the effectiveness of market power. We provide some measures of relative market power. We show it depends on the relative size of the market and on the ratio of price elasticities of supply. Finally, we study free entry. We show it does not always lead to the competitive equilibrium market outcome.
(This abstract was borrowed from another version of this item.)

Suggested Citation

  • Ludovic A. Julien, 2015. "A note on market power in bilateral oligopoly," Post-Print hal-01385976, HAL.
    • Handle: RePEc:hal:journl:hal-01385976
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    References listed on IDEAS

    as
    1. Bloch, Francis & Ferrer, Helene, 2001. "Strategic complements and substitutes in bilateral oligopolies," Economics Letters, Elsevier, vol. 70(1), pages 83-87, January.
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    3. Jean J. Gabszewicz, 2002. "Strategic Multilateral Exchange," Books, Edward Elgar Publishing, number 756.
    4. Amir, Rabah & Bloch, Francis, 2009. "Comparative statics in a simple class of strategic market games," Games and Economic Behavior, Elsevier, vol. 65(1), pages 7-24, January.
    5. Cordella, Tito & Gabszewicz, Jean J., 1998. ""Nice" Trivial Equilibria in Strategic Market Games," Games and Economic Behavior, Elsevier, vol. 22(1), pages 162-169, January.
    6. Alex Dickson & Roger Hartley, 2013. "Bilateral oligopoly and quantity competition," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 52(3), pages 979-1004, April.
    7. Sahi, Siddhartha & Yao, Shuntian, 1989. "The non-cooperative equilibria of a trading economy with complete markets and consistent prices," Journal of Mathematical Economics, Elsevier, vol. 18(4), pages 325-346, September.
    8. Amir, Rabah & Sahi, Siddharta & Shubik, Martin & Yao, Shuntian, 1990. "A strategic market game with complete markets," Journal of Economic Theory, Elsevier, vol. 51(1), pages 126-143, June.
    9. Martin Shubik & Jingang Zhao, 1990. "A Strategic Market Game of a Finite Economy with a Mutual Bank," Cowles Foundation Discussion Papers 961, Cowles Foundation for Research in Economics, Yale University.
    10. Busetto, Francesca & Codognato, Giulio, 2006. ""Very Nice" trivial equilibria in strategic market games," Journal of Economic Theory, Elsevier, vol. 131(1), pages 295-301, November.
    11. Alex Dickson, 2013. "The Effects of Entry in Bilateral Oligopoly," Games, MDPI, vol. 4(3), pages 1-21, June.
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    More about this item

    JEL classification:

    • D4 - Microeconomics - - Market Structure, Pricing, and Design
    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance

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