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Patterns of Competitive Interaction

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  • Armstrong, Mark
  • Vickers, John

Abstract

We explore patterns of competitive interaction by studying mixed-strategy equilibrium pricing in oligopoly settings where consumers vary in the set of suppliers they consider for their purchase. In the case of "nested reach" we find equilibria, unlike those in existing models, in which price competition is segmented: small firms offer only low prices and large firms only offer high prices. We characterize equilibria in the three-firm case using correlation measures of competition between pairs of firms. We then contrast them with equilibria in the parallel model with capacity constraints. A theme of the analysis is how patterns of consumer consideration matter for competitive outcomes.

Suggested Citation

  • Armstrong, Mark & Vickers, John, 2019. "Patterns of Competitive Interaction," CEPR Discussion Papers 13821, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:13821
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    Cited by:

    1. Mark Armstrong & John Vickers, 2023. "Multibrand Price Dispersion," Economics Series Working Papers 1029, University of Oxford, Department of Economics.
    2. Christian Oertel & Armin Schmutzler, 2022. "Challenging the incumbent: Entry in markets with captive consumers and taste heterogeneity," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 31(4), pages 961-979, November.
    3. Johannes Johnen & David Ronayne, 2021. "The only Dance in Town: Unique Equilibrium in a Generalized Model of Price Competition," Journal of Industrial Economics, Wiley Blackwell, vol. 69(3), pages 595-614, September.
    4. Vickers, John, 2021. "Competition for imperfect consumers," International Journal of Industrial Organization, Elsevier, vol. 79(C).
    5. Chioveanu, Ioana, 2024. "Consumer data and price discrimination by consideration sets," Economics Letters, Elsevier, vol. 236(C).
    6. Heski Bar-Isaac & Sandro Shelegia, 2023. "Search, Showrooming, and Retailer Variety," Marketing Science, INFORMS, vol. 42(2), pages 251-270, March.
    7. Saur, Marc P. & Schlatterer, Markus G. & Schmitt, Stefanie Y., 2022. "Limited perception and price discrimination in a model of horizontal product differentiation," Games and Economic Behavior, Elsevier, vol. 134(C), pages 151-168.
    8. Gehrig, Thomas & Ritzberger, Klaus, 2022. "Intermediation and price volatility," Journal of Economic Theory, Elsevier, vol. 201(C).

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    More about this item

    Keywords

    Consideration sets; Mixed strategies; Price dispersion; Captive customers; Bertrand-edgeworth competition;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L15 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Information and Product Quality

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