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Colusión en un duopolio de Bertrand con rendimientos decrecientes y productos diferenciados


  • Roberto Contreras
  • Nikolaos Georgantzis
  • Miguel Ginés



Estudiamos las implicaciones que tienen sobre la estabilidad del cartel los rendimientos de escala en presencia de productos diferenciados cuando las empresas compiten en precios. Mostramos que el cartel puede ser igualmente estable en presencia de un menor grado de diferenciación siempre que las deseconomías de escala sean más intensas. Además, encontramos que para un determinado valor del factor de descuento crítico, siempre será posible hallar unas determinadas deseconomías de escala donde los acuerdos colusivos son estables independiente del grado de diferenciación de los productos.

Suggested Citation

  • Roberto Contreras & Nikolaos Georgantzis & Miguel Ginés, 2008. "Colusión en un duopolio de Bertrand con rendimientos decrecientes y productos diferenciados," Estudios de Economia, University of Chile, Department of Economics, vol. 35(1 Year 20), pages 19-31, June.
  • Handle: RePEc:udc:esteco:v:35:y:2008:i:1:p:19-31

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    More about this item


    Colusión; producto diferenciado; retornos decrecientes a escala;

    JEL classification:

    • C70 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - General
    • D21 - Microeconomics - - Production and Organizations - - - Firm Behavior: Theory
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection


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