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Imperfect Competition à la Negishi also with Fixed Costs

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Author Info
Pïerre DEHEZ (UNIVERSITE CATHOLIQUE DE LOUVAIN, Institut de Recherches Economiques et Sociales (IRES))
Jacques H. DREZE (UNIVERSITE CATHOLIQUE DE LOUVAIN, Center for Operations Research and Econometrics (CORE))
Takashi SUZUKI (Meiji-Gakuin University - Tokyo - JAPAN)

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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 otherwise standard 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.

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Paper provided by Université catholique de Louvain, Institut de Recherches Economiques et Sociales (IRES) in its series Université catholique de Louvain, Institut de Recherches Economiques et Sociales (IRES) Discussion Paper with number 2002044.

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Length: 30
Date of creation: 01 Dec 2002
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Handle: RePEc:ctl:louvir:2002044

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Keywords: Imperfect competition fixed cost general equilibrium perceived demand pricing rules

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Find related papers by JEL classification:
D43 - Microeconomics - - Market Structure and Pricing - - - Oligopoly and Other Forms of Market Imperfection
D51 - Microeconomics - - General Equilibrium and Disequilibrium - - - Exchange and Production Economies
L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Blanchard, Olivier Jean & Kiyotaki, Nobuhiro, 1987. "Monopolistic Competition and the Effects of Aggregate Demand," American Economic Review, American Economic Association, vol. 77(4), pages 647-66, September. [Downloadable!] (restricted)
  2. Bonnisseau, Jean-Marc & Cornet, Bernard, 1988. "Existence of equilibria when firms follow bounded losses pricing rules," Journal of Mathematical Economics, Elsevier, vol. 17(2-3), pages 119-147, April. [Downloadable!] (restricted)
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  1. Jacques H., DREZE & Jean-Jacques, HERINGS, 2007. "Kinky perceived demand curves and Keynes-Negishi equilibria," Université catholique de Louvain, Département des Sciences Economiques Working Paper 2007037, Université catholique de Louvain, Département des Sciences Economiques. [Downloadable!]
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