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Entry, exit, and imperfect competition in the long run

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  • AMIR, Rabah
  • LAMBSON, Val

Abstract

An infinite-horizon, stochastic model of entry and exit with sunk costs and imperfect competition is constructed. Simple examples provide insights into: (1) the relationship between sunk costs and industry concentration, (2) entry when current profits are negative, and (3) the relationship between entry and the length of the product cycle. A subgame perfect Nash equilibrium for the general dynamic stochastic game is shown to exist as a limit of finite-horizon equilibria. This equilibriumhas a relatively simple structure characterized by two numbers per finite history. Under very general conditions, it tends to exhibit excessive entry and insufficient exit relative to a social optimum.

Suggested Citation

  • AMIR, Rabah & LAMBSON, Val, 2003. "Entry, exit, and imperfect competition in the long run," CORE Discussion Papers 2003066, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  • Handle: RePEc:cor:louvco:2003066
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    References listed on IDEAS

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    13. Hopenhayn, Hugo A, 1992. "Entry, Exit, and Firm Dynamics in Long Run Equilibrium," Econometrica, Econometric Society, vol. 60(5), pages 1127-1150, September.
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    Citations

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    Cited by:

    1. Frank H. Page & Myrna H. Wooders, 2009. "Endogenous Network Dynamics," Working Papers 2009.28, Fondazione Eni Enrico Mattei.
    2. Belleflamme,Paul & Peitz,Martin, 2015. "Industrial Organization," Cambridge Books, Cambridge University Press, number 9781107687899, March.
    3. Gong, Rui & Page, Frank & Wooders, Myrna, 2015. "Endogenous correlated network dynamics," LSE Research Online Documents on Economics 65098, London School of Economics and Political Science, LSE Library.
    4. Amir, Rabah & De Castro, Luciano & Koutsougeras, Leonidas, 2014. "Free entry versus socially optimal entry," Journal of Economic Theory, Elsevier, vol. 154(C), pages 112-125.
    5. Herings, P. Jean-Jacques & Peeters, Ronald & Schinkel, Maarten Pieter, 2005. "Intertemporal market division:: A case of alternating monopoly," European Economic Review, Elsevier, vol. 49(5), pages 1207-1223, July.
    6. Moretto, Michele, 2008. "Competition and irreversible investments under uncertainty," Information Economics and Policy, Elsevier, vol. 20(1), pages 75-88, March.
    7. James Prieger, 2007. "The Impact of Cost Changes on Industry Entry and Exit," Journal of Economics, Springer, vol. 91(3), pages 211-243, July.
    8. Amir, Rabah & Lambson, Val E., 2007. "Imperfect competition, integer constraints and industry dynamics," International Journal of Industrial Organization, Elsevier, vol. 25(2), pages 261-274, April.
    9. Francisco Ruiz-Aliseda, 2003. "Strategic Commitment Versus Flexibility in a Duopoly with Entry and Exit," Discussion Papers 1379, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
    10. Óscar Gutiérrez & Francisco Ruiz-Aliseda, 2009. "Entry Patterns Over The Product Life Cycle," Manchester School, University of Manchester, vol. 77(5), pages 594-610, September.
    11. Bertomeu, Jeremy, 2009. "Endogenous shakeouts," International Journal of Industrial Organization, Elsevier, vol. 27(3), pages 435-440, May.
    12. James E. Prieger, 2005. "The Impact of Cost Changes on Industry Dynamics," Working Papers 51, University of California, Davis, Department of Economics.
    13. Ruiz-Aliseda, Francisco, 2016. "Preemptive investments under uncertainty, credibility and first mover advantages," International Journal of Industrial Organization, Elsevier, vol. 44(C), pages 123-137.
    14. Amir, Rabah & Halmenschlager, Christine & Jin, Jim, 2011. "R&D-induced industry polarization and shake-outs," International Journal of Industrial Organization, Elsevier, vol. 29(4), pages 386-398, July.
    15. Luo, Guo Ying, 2009. "Irrationality and monopolistic competition: An evolutionary approach," European Economic Review, Elsevier, vol. 53(5), pages 512-526, July.

    More about this item

    Keywords

    entry; exit; dynamic games; integer constraints;

    JEL classification:

    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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