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A note on price-taking and price-making behaviours in pure exchange economies

Ludovic Julien and Fabrice Tricou

No 2006-3, EconomiX Working Papers from University of Paris Nanterre, EconomiX

Abstract: 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.

JEL-codes: D43 D51 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-com and nep-mic
Date: 2006
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