Unequal treatment of identical agents in cournot equilibrium

Shaffer, Greg and Salant, Stephen (1999) Unequal treatment of identical agents in cournot equilibrium. American Economic Review, 89 (3). pp. 585-604.

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Abstract

Oligopoly models where prior actions by firms affect subsequent marginal costs have been useful in illuminating policy debates in areas such as antitrust regulation, environmental protection, and international competition. We discuss properties of such models when a Cournot equilibrium occurs at the second stage. Aggregate production costs strictly decline with no change in gross revenue or gross consumer surplus if the prior actions strictly increase the variance of marginal costs without changing the marginal-cost sum. Therefore, unless the cost of inducing second-stage asymmetry more than offsets this reduction in production costs, the private and social optima are asymmetric.

Item Type: Article
Faculty \ School: Faculty of Social Sciences > Norwich Business School
Related URLs:
Depositing User: Nicola Secker
Date Deposited: 01 Apr 2011 07:58
Last Modified: 21 Apr 2020 21:23
URI: https://ueaeprints.uea.ac.uk/id/eprint/27846
DOI: 10.1257/aer.89.3.585

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