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Noncooperative oligopoly in markets with a continuum of traders
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Busetto, Francesca, Codognato, Giulio and Ghosal, Sayantan (2008) Noncooperative oligopoly in markets with a continuum of traders. Working Paper. Coventry: University of Warwick, Department of Economics. (Warwick economic research papers). (Unpublished)

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Abstract
In this paper, we study three prototypical models of noncooperative oligopoly in markets with a continuum of traders : the model of CournotWalras equilibrium of Codognato and Gabszewicz (1991), the model of CournotNash equilibrium of Lloyd S. Shapley, and the model of CournotWalras equilibrium of Busetto et al. (2008). We argue that these models are all distinct and only the Shapley's model with a continuum of traders and atoms gives an endogenous explanation of the perfectly and imperfectly competitive behavior of agents in a onestage setting. For this model, we prove a theorem of existence of a CournotNash equilibrium.
Item Type:  Working or Discussion Paper (Working Paper) 

Subjects:  H Social Sciences > HD Industries. Land use. Labor 
Divisions:  Faculty of Social Sciences > Economics 
Library of Congress Subject Headings (LCSH):  Oligopolies, Competition, Imperfect, Noncooperative games (Mathematics), Stock exchanges 
Series Name:  Warwick economic research papers 
Publisher:  University of Warwick, Department of Economics 
Place of Publication:  Coventry 
Date:  September 2008 
Number:  Number 866 
Number of Pages:  32 
Status:  Not Peer Reviewed 
Publication Status:  Unpublished 
Access rights to Published version:  Open Access 
Version or Related Resource:  Published: Busetto, F., et al. (2011). Noncooperative oligopoly in markets with a continuum of traders. Games and Economic Behavior, 72(1), pp. 3845. http://wrap.warwick.ac.uk/id/eprint/41559 
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URI:  http://wrap.warwick.ac.uk/id/eprint/1350 
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