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Natural Oligopolies: A Vertical Differentiation Model

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  • Lahmandi-Ayed, Rim

Abstract

This article contains a more complete characterization of conditions under which vertically differentiated markets are or are not natural oligopolies than has been found previously in the literature. Specifically, previous results on markets in which firms have cost functions with constant returns are incomplete; these results are expanded. Moreover, results are provided for markets with firms having increasing or decreasing marginal cost functions. Copyright 2000 by Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association.

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Bibliographic Info

Article provided by Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association in its journal International Economic Review.

Volume (Year): 41 (2000)
Issue (Month): 4 (November)
Pages: 971-87

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Handle: RePEc:ier:iecrev:v:41:y:2000:i:4:p:971-87

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Cited by:
  1. Jean-Marc Bonnisseau & Rim Lahmandi-Ayed, 2004. "Vertical differentiation with non-uniform consumers¡ distribution," Cahiers de la Maison des Sciences Economiques b04114, Université Panthéon-Sorbonne (Paris 1).
  2. Raphael Auer & Philip Sauré, 2011. "Spatial Competition in Quality, Demand-Induced Innovation, and Schumpeterian Growth," Working Papers 11.04, Swiss National Bank, Study Center Gerzensee.
  3. Adel Ben Youssef & Rim Lahmandi-Ayed, 2008. "Eco-labelling, Competition and Environment: Endogenization of Labelling Criteria," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 41(2), pages 133-154, October.
  4. repec:hal:cesptp:halshs-00193974 is not listed on IDEAS
  5. Rim Lahmandi-Ayed, 2007. "Finiteness property with vertical and horizontal differentiation: does it really matter?," Economic Theory, Springer, vol. 33(3), pages 531-548, December.
  6. Amacher, Gregory & Koskela, Erkki & Ollikainen, Markku, 2003. "Environmental Quality Competition and Eco-labeling," Discussion Papers 848, The Research Institute of the Finnish Economy.
  7. Jean-Marc Bonnisseau & Hend Ghazzai, 2005. "Monopole, stratégies multiproduit et incitation à la recherche et développement," Cahiers de la Maison des Sciences Economiques b05025, Université Panthéon-Sorbonne (Paris 1).

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