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Imperfect competition à la Negishi, also with fixed costs

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  • DEHEZ, Pierre
  • DREZE, Jacques
  • SUZUKI, Takashi

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.

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Bibliographic Info

Paper provided by Université catholique de Louvain, Center for Operations Research and Econometrics (CORE) in its series CORE Discussion Papers with number 2002078.

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Date of creation: 00 Dec 2002
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Handle: RePEc:cor:louvco:2002078

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Keywords: imperfect competition; fixed costs; general equilibrium; perceived demand; pricing rules;

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  1. BONNISSEAU, Jean-Marc & CORNET, Bernard, . "Existence of equilibria when firms follow bounded losses pricing rules," CORE Discussion Papers RP -814, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  2. 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.
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Cited by:
  1. DREZE, Jacques H. & HERINGS, Jean-Jacques P., . "Kinky perceived demand curves and Keynes-Negishi equilibria," CORE Discussion Papers RP -2035, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  2. Weinrich, Gerd, 2007. "New Keynesian monopolistic competition and objective demand," Journal of Mathematical Economics, Elsevier, vol. 43(2), pages 153-173, February.
  3. Xi Chen & Bertrand M. Koebel, 2013. "Fixed cost, variable cost, markups and returns to scale," Working Papers of BETA 2013-13, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
  4. repec:hal:journl:halshs-00194881 is not listed on IDEAS

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