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Network Effects, Market Structure and Industry Performance

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  • Rabah Amir

    ()
    (University of Luxembourg and University of Arizona)

  • Natalia Lazzati

    ()
    (University of Arizona)

Abstract

This paper provides a thorough analysis of oligopolistic markets with positive demand-side network externalities and perfect compatibility. The minimal structure imposed on the model primitives is such that industry output increases in a firmr's rivals' total output as well as in the expected network size. This leads to a generalized equilibrium existence treatment that includes guarantees for a nontrivial equilibrium, and some insight into possible multiplicity of equilibria. We formalize the concept of industry viability and show that it is always enhanced by having more firms in the market and/or by technological improvements. We also characterize the e ¤ects of market structure on industry performance, with an emphasis on departures from standard markets. The approach relies on lattice-theoretic methods, which allow for a unified treatment of various general results in the literature on network goods. Several illustrative examples with closed-form solutions are also provided.

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Bibliographic Info

Paper provided by Center for Research in Economic Analysis, University of Luxembourg in its series CREA Discussion Paper Series with number 10-16.

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Date of creation: 2010
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Handle: RePEc:luc:wpaper:10-16

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Keywords: Network effects; demand-side externalities; monotone comparative statics; Cournot oligopoly; supermodularity;

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Cited by:
  1. Laussel, Didier & Resende, Joana, 2014. "Dynamic price competition in aftermarkets with network effects," Journal of Mathematical Economics, Elsevier, vol. 50(C), pages 106-118.
  2. Didier LAUSSEL & Ngo Van LONG & Joana RESENDE, 2014. "Network E¤ects, Aftermarkets and the Coase Conjecture : A Dynamic Markovian Approach," Cahiers de recherche 06-2014, Centre interuniversitaire de recherche en économie quantitative, CIREQ.
  3. Roberto Burguet & Preston McAffee, 2005. "License Prices for Financially Constrained Firms," Working Papers 224, Barcelona Graduate School of Economics.

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