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Concurrence en catalogue dans le duopole d'Hotelling

Author

Listed:
  • Pierre Fleckinger

    (CES - Centre d'économie de la Sorbonne - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique)

  • Thierry Lafay

    (PRISM Sorbonne - Pôle de recherche interdisciplinaire en sciences du management - UP1 - Université Paris 1 Panthéon-Sorbonne)

Abstract

Nous étudions un duopole sur un marché où les produits sont différenciés horizontalement. Les firmes se font concurrence en catalogue dans le sens où elles choisissent simultanément un produit et un prix. Nous montrons alors qu'il n'existe pas d'équilibre de Nash en stratégie pure en simultané mais qu'une structure leader-follower permet de restaurer l'existence d'un équilibre. Dans cet équilibre sous jeux parfait, le leader choisit un produit plus spécifique et à un prix plus faible que le suiveur. Le leader fait donc un profit inférieur à celui du suiveur. Cela induit une tension entre la tentation de l'attrition, qui conduit à une situation instable, et la volonté de se garantir un profit strictement positif.

Suggested Citation

  • Pierre Fleckinger & Thierry Lafay, 2006. "Concurrence en catalogue dans le duopole d'Hotelling," Post-Print hal-00641861, HAL.
    • Handle: RePEc:hal:journl:hal-00641861
    Note: View the original document on HAL open archive server: https://hal.science/hal-00641861v1
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    References listed on IDEAS

    as
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    JEL classification:

    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
    • H41 - Public Economics - - Publicly Provided Goods - - - Public Goods
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • M3 - Business Administration and Business Economics; Marketing; Accounting; Personnel Economics - - Marketing and Advertising

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