Imperfect competition à la Negishi, also with fixed costs

Pierre Dehez (), Jacques Dreze and Takashi Suzuki

No 2002078, LIDAM Discussion Papers CORE from Université catholique de Louvain, Center for Operations Research and Econometrics (CORE)

Abstract: The paper studies equilibria for economies with imperfect competition and non-convex technologies. Following Negishi, firms maximise profits under downward-sloping perceived demand functions. Negishi's assumptions, in particular the assumption of a single monopolistic competitor in each market, are relaxed. Existence of equilibria is obtained, under otherwisestandard assumptions, for productions sets defined in each firm by the union of a convex technology and a technology subject to fixed costs. In the light of a counterexample, it is assumed that fixed factors are distinct from variable factors. Technically, the proof rests on pricing rules.

Keywords: imperfect competition; fixed costs; general equilibrium; perceived demand; pricing rules (search for similar items in EconPapers)
JEL-codes: D43 D51 L13 (search for similar items in EconPapers)
Date: 2002-12
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Related works:
Journal Article: Imperfect competition a la Negishi, also with fixed costs (2003)
Working Paper: Imperfect competition à la Negishi, also with fixed costs (2003)
Working Paper: Imperfect competition à la Negishi also with fixed costs (2003)
Working Paper: Imperfect Competition à la Negishi also with Fixed Costs (2002)
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