Monopolistic Competition with large firms

Claude d'Aspremont and Rodolphe Dos Santos Ferreira

Working Papers of BETA from Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg

Abstract: We consider the concept of Cournotian monopolistic competition equilibrium as a tractable way of taking the strategic behaviour of large firms into account in a general equilibrium framework. Existence is obtained under simple assumptions, ensuring in particular uniqueness of Cournot equilibrium for each group of firms. An extension of the concept, allowing intrasectoral competitive behaviour to vary in intensity is also examined.

Keywords: Oligopolistic; and; monopolistic; competition.; Uniqueness; of; Cournot; equilibrium. (search for similar items in EconPapers)
JEL-codes: D43 D51 (search for similar items in EconPapers)
Date: 2025
New Economics Papers: this item is included in nep-mic
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Persistent link: https://EconPapers.repec.org/RePEc:ulp:sbbeta:2025-21

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