A note on price-taking and price-making behaviours in pure exchange economies
This paper explores the rationale of price-taking and price-making behaviours in the context of Walrasian and Cournotian pure exchange economies. Beside the influence of the number of agents, we underline the role of the structure of preferences in the definition and in the working of market power. Through three equilibrium variations of the same basic economy, we obtain several results about price manipulation, about asymptotic identifications for large economies and for degenerate preferences, and about welfare comparisons. Perfect competition does not only correspond to the case of large economies, but may also concern economies where fundamental market powers are more or less equivalent.
|Date of creation:||2006|
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- CODOGNATO, Giulio & GABSZEWICZ, Jean, .
"Equilibres de Cournot-Walras dans une économie d'échange,"
CORE Discussion Papers RP
-964, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Jean Gabszewicz & Giulio Codognato, 1991. "Équilibres de Cournot-Walras dans une économie d'échange," Revue Économique, Programme National Persée, vol. 42(6), pages 1013-1026.
- Shapley, Lloyd S & Shubik, Martin, 1977. "Trade Using One Commodity as a Means of Payment," Journal of Political Economy, University of Chicago Press, vol. 85(5), pages 937-68, October.
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