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Imperfect competition, integer constraints and industry dynamics

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  • AMIR, Rabah
  • LAMBSON, Val E.

Abstract

Amir and Lambson (2003) developed an infinite-horizon, stochastic model of entry and exit by integer numbers of firms facing sunk costs and uncertain market conditions. Here, as examples of the model' usefulness, special cases are applied to the following three s issues: (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.

Suggested Citation

  • AMIR, Rabah & LAMBSON, Val E., 2004. "Imperfect competition, integer constraints and industry dynamics," LIDAM Discussion Papers CORE 2004042, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    • Handle: RePEc:cor:louvco:2004042
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    References listed on IDEAS

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    Cited by:

    1. 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.
    2. Samuli Leppälä, 2020. "Innovation, R&D Spillovers, and the Variety and Concentration of the Local Industry Structure," Scandinavian Journal of Economics, Wiley Blackwell, vol. 122(3), pages 1231-1255, July.
    3. Keil, Jan, 2017. "The trouble with approximating industry concentration from Compustat," Journal of Corporate Finance, Elsevier, vol. 45(C), pages 467-479.

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    More about this item

    Keywords

    entry and exit; dynamic games; integer constraints;
    All these keywords.

    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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