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On the Existence and uniqueness of Price Equilibrium with Multi-Store Firms

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  • GIRAUD-HERAULD E.
  • HAMMOUDI A.
  • RAMANI S-V.

Abstract

The paper gives a proof of the existence and the uniqueness of price equilibrium in a multi-product, multi-firm competition framework. It illustrates how the price levels depends on the inter-brand portfolio substitution and on the intra-brand portfolio substitution
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Suggested Citation

  • Giraud-Herauld E. & Hammoudi A. & Ramani S-V., 2006. "On the Existence and uniqueness of Price Equilibrium with Multi-Store Firms," Working Papers ERMES 0613, ERMES, University Paris 2.
    • Handle: RePEc:erm:papers:0613
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    File URL: http://ermes.u-paris2.fr/doctrav/0613
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    References listed on IDEAS

    as
    1. Janssen, Maarten C.W. & Karamychev, Vladimir A. & van Reeven, Peran, 2005. "Multi-store competition: Market segmentation or interlacing?," Regional Science and Urban Economics, Elsevier, vol. 35(6), pages 700-714, November.
    2. Steven C. Salop, 1979. "Monopolistic Competition with Outside Goods," Bell Journal of Economics, The RAND Corporation, vol. 10(1), pages 141-156, Spring.
    3. Janet S. Netz & Beck A. Taylor, 2002. "Maximum Or Minimum Differentiation? Location Patterns Of Retail Outlets," The Review of Economics and Statistics, MIT Press, vol. 84(1), pages 162-175, February.
    4. Klemperer, Paul, 1992. "Equilibrium Product Lines: Competing Head-to-Head May Be Less Competitive," American Economic Review, American Economic Association, vol. 82(4), pages 740-755, September.
    5. Barron, John M & Taylor, Beck A & Umbeck, John R, 2000. "A Theory of Quality-Related Differences in Retail Margins: Why There Is a "Premium" on Premium Gasoline," Economic Inquiry, Western Economic Association International, vol. 38(4), pages 550-569, October.
    6. Pal, Debashis & Sarkar, Jyotirmoy, 2002. "Spatial competition among multi-store firms," International Journal of Industrial Organization, Elsevier, vol. 20(2), pages 163-190, February.
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    More about this item

    JEL classification:

    • C0 - Mathematical and Quantitative Methods - - General
    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance

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