Behavioural heterogeneity and Cournot oligopoly equilibrium
AbstractIt is not infrequent to see studies of imperfect competition or of industrial organization rest upon questionable foundations such as the hypothesis that inverse market demand is, whenever it is positive, concave or even linear. Assumptions of this sort are not robust (i.e., "additive") in the sense that they are not usually preserved through aggregation of different sectors that would satisfy them individually. The present paper investigates an alternative specification that is based upon the plausible existence of significant heterogeneities among demanders. It is demonstrated that specific forms of demand heterogeneity tend to stabilize market expenditures. In a partial equilibrium context, sufficient demand heterogeneity is shown to imply existence and unicity of a Cournot oligopoly equilibrium.
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Bibliographic InfoArticle provided by Elsevier in its journal Ricerche Economiche.
Volume (Year): 47 (1993)
Issue (Month): 2 (June)
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Web page: http://www.elsevier.com/locate/inca/622941
Other versions of this item:
- Jean-Michel Grandmont, 1993. "Behavioral Heterogeneity and Cournot Oligopoly Equilibrium," Cowles Foundation Discussion Papers 1044, Cowles Foundation for Research in Economics, Yale University.
- Grandmont, Jean-Michel, 1993. "Behavioral heterogeneity and Cournot oligopoly equilibrium," CEPREMAP Working Papers (Couverture Orange) 9305, CEPREMAP.
- D00 - Microeconomics - - General - - - General
- D43 - Microeconomics - - Market Structure and Pricing - - - 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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