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Imperfect competition à la Negishi also with fixed costs

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Author Info
Pierre Dehez (University of Louvain)
Jacques Dreze (university of Louvain)
Takashi Suzuki (Meiji-Gakuin University)

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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 production sets defined in each firm by the union of a convex technology and a technology subjected 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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File URL: http://129.3.20.41/eps/mic/papers/0304/0304003.pdf
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Publisher Info
Paper provided by EconWPA in its series Microeconomics with number 0304003.

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Length: 30 pages
Date of creation: 07 Apr 2003
Date of revision:
Handle: RePEc:wpa:wuwpmi:0304003

Note: Type of Document - pdf; prepared on Tex; pages: 30; figures: included. to appear in JME
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Web page: http://129.3.20.41

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Related research
Keywords: imperfect competition; fixed costs; general equilibrium; perceived demands; 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," Discussion Papers (ECON - Département des Sciences Economiques) 2007037, Université catholique de Louvain, Département des Sciences Economiques. [Downloadable!]
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