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Existence of pure strategy equilibria in Bertrand-Edgeworth games with imperfect divisibility of money

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De Francesco, Massimo A.

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Abstract

This paper incorporates imperfect divisibility of money in a price game where a given number of identical firms produce a homogeneous product at constant unit cost up to capacity. We find necessary and sufficient conditions for the existence of a pure strategy equilibrium. Unlike in the continuous action space case, under discrete pricing there may be a range of symmetric pure strategy equilibria - which we fully characterize - a range which may or may not include the competitive price. Also, we determine the maximum number of such equilibria when competitive pricing is itself an equilibrium.

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File URL: http://mpra.ub.uni-muenchen.de/10826/
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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 10826.

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Date of creation: 29 Sep 2008
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Handle: RePEc:pra:mprapa:10826

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Related research
Keywords: Bertrand-Edgeworth competition Price game Oligopoly Pure strategy equilibrium Discrete pricing.

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Find related papers by JEL classification:
L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
D43 - Microeconomics - - Market Structure and Pricing - - - Oligopoly and Other Forms of Market Imperfection
C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games

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  1. Vives, Xavier, 1986. "Rationing rules and Bertrand-Edgeworth equilibria in large markets," Economics Letters, Elsevier, vol. 21(2), pages 113-116. [Downloadable!] (restricted)
  2. Roy Chowdhury, Prabal, 2008. "Bertrand-Edgeworth equilibrium with a large number of firms," International Journal of Industrial Organization, Elsevier, vol. 26(3), pages 746-761, May. [Downloadable!] (restricted)
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