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Market coverage and the nature of product differentiation : a note

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  • WAUTHY, Xavier

    (Facultés universitaires Saint-Louis, CEREC, Bruxelles, Belgium and Université catholique de Louvain, CORE, B-1348 Louvain-la-Neuve, Belgium)

Abstract

In this note, we analyze the equilibrium outcomes of pricing games with product differentiation in relation with the extent of market coverage. It is a received idea in the IO literature that the horizontal and vertical models of product differentiation are almost formally equivalent. We show that this idea turns out to be wrong when the full market coverage assumption is relaxed. We then argue that there exist two fundamentally different classes of address-models of differentiation, although their difference is not perfectly captured by the standard horizontal/vertical typology

Suggested Citation

  • WAUTHY, Xavier, 2009. "Market coverage and the nature of product differentiation : a note," LIDAM Discussion Papers CORE 2009081, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    • Handle: RePEc:cor:louvco:2009081
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    References listed on IDEAS

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    1. Gabszewicz, Jean Jaskold & Thisse, Jacques-Francois, 1986. "On the Nature of Competition with Differentiated Products," Economic Journal, Royal Economic Society, vol. 96(381), pages 160-172, March.
    2. Boccard, N. & Wauthy, X.Y., 2010. "Equilibrium vertical differentiation in a Bertrand model with capacity precommitment," International Journal of Industrial Organization, Elsevier, vol. 28(3), pages 288-297, May.
    3. Irmen, Andreas & Thisse, Jacques-Francois, 1998. "Competition in Multi-characteristics Spaces: Hotelling Was Almost Right," Journal of Economic Theory, Elsevier, vol. 78(1), pages 76-102, January.
    4. Jaskold Gabszewicz, J. & Thisse, J. -F., 1979. "Price competition, quality and income disparities," Journal of Economic Theory, Elsevier, vol. 20(3), pages 340-359, June.
    5. Schmidt, Robert C., 2009. "Welfare in differentiated oligopolies with more than two firms," International Journal of Industrial Organization, Elsevier, vol. 27(4), pages 501-507, July.
    6. Cremer, Helmuth & Thisse, Jacques-Francois, 1991. "Location Models of Horizontal Differentiation: A Special Case of Vertical Differentiation Models," Journal of Industrial Economics, Wiley Blackwell, vol. 39(4), pages 383-390, June.
    7. Shaked, Avner & Sutton, John, 1983. "Natural Oligopolies," Econometrica, Econometric Society, vol. 51(5), pages 1469-1483, September.
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    Cited by:

    1. Garella, Paolo G. & Laussel, Didier & Resende, Joana, 2021. "Behavior based price personalization under vertical product differentiation," International Journal of Industrial Organization, Elsevier, vol. 76(C).

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    More about this item

    Keywords

    price competition; product differentiation;

    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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