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Price discrimination and equilibrium in monopolistic competition


  • NORMAN, G.
  • THISSE, Jacques-François


Modern theories of monopolistic competition have borrowed extensively from techniques developed in location theory and the theory of spatial pricing: the monopolistically competitive firm is assumed to choose a "location" and price for its product. A subject that has been of increasing concern in this corpus of theory is that there exists no free-entry price-location equilibrium. In this paper we demonstrate that free-entry price-location equilibrium exists provided only that producers are allowed to price discriminate among customers in a reasonable manner. Equilibrium is modelled as a two-stage game using the Selten concept of subgame perfect Nash equilibrium. It is shown that the equilibrium discriminatory price system is one initially identified by Hoover. In addition, we show that equilibrium is not unique. The precise nature of equilibrium in a particular market will be dependent upon the history of that market.
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  • MACLEOD, W.B. & NORMAN, G. & THISSE, Jacques-François, 1992. "Price discrimination and equilibrium in monopolistic competition," CORE Discussion Papers RP 1021, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  • Handle: RePEc:cor:louvrp:1021
    Note: In : Market Strategy and Structure, edited by J.M. Alec Gee and George Norman, New York, Harvester, 184-200, 1992

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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
    • L22 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Organization and Market Structure
    • L68 - Industrial Organization - - Industry Studies: Manufacturing - - - Appliances; Furniture; Other Consumer Durables


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