Bertrand-Edgeworth equilibrium with a large number of firms

Prabal Roy Chowdhury ()

International Journal of Industrial Organization, 2008, vol. 26, issue 3, 746-761

Abstract: We examine a model of price competition with strictly convex costs where the firms simultaneously decide on both price and quantity, are free to supply less than the quantity demanded, and there is discrete pricing. If firms are symmetric then, for a large class of residual demand functions, there is a unique equilibrium in pure strategies whenever, for a fixed grid size, the number of firms is sufficiently large. Moreover, this equilibrium price is within a grid-unit of the competitive price. The results go through to a large extent when the firms are asymmetric, or they are symmetric but play a two-stage game and the tie-breaking rule is 'weakly manipulable'.

Date: 2008
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Working Paper: Bertrand-Edgeworth equilibrium with a large number of firms (2007)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:indorg:v:26:y:2008:i:3:p:746-761

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