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Endogenous Market Segmentation and the Law of One Price

Author

Listed:
  • Friberg, Richard

    (Dept. of Economic Statistics, Stockholm School of Economics)

  • Martensen, Kaj

    (Dept. of Economic Statistics, Stockholm School of Economics)

Abstract

To the surprise of many, price deviations between markets characterized by imperfect competition have often been little affected by lower transport costs. In a Cournot model we show that if firms' decisions to segment markets are endogenous, then lower transport costs are, in many cases, associated with greater price differentials between markets. The intuition is that lower transport costs, by facilitating arbitrage, place a tighter restriction on the maximization problem and a firm is willing to take a greater cost in order to segment. We examine how the resulting equilibria depend on transport costs, product differentiation and costs of segmenting.

Suggested Citation

  • Friberg, Richard & Martensen, Kaj, 2001. "Endogenous Market Segmentation and the Law of One Price," SSE/EFI Working Paper Series in Economics and Finance 471, Stockholm School of Economics.
    • Handle: RePEc:hhs:hastef:0471
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    Citations

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    Cited by:

    1. Yuriy Gorodnichenko & Oleksandr Talavera, 2017. "Price Setting in Online Markets: Basic Facts, International Comparisons, and Cross-Border Integration," American Economic Review, American Economic Association, vol. 107(1), pages 249-282, January.
    2. Ogrokhina, Olena, 2019. "Persistence of prices in the Eurozone capital cities: Evidence from the Economist Intelligence Unit City Data," Economic Modelling, Elsevier, vol. 76(C), pages 330-338.
    3. Ganslandt, Mattias & Maskus, Keith E., 2007. "Vertical distribution, parallel trade, and price divergence in integrated markets," European Economic Review, Elsevier, vol. 51(4), pages 943-970, May.
    4. Chi‐Young Choi & Anthony Murphy & Jyh‐Lin Wu, 2017. "Segmentation of consumer markets in the US: What do intercity price differences tell us?," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 50(3), pages 738-777, August.
    5. Ogrokhina, Olena, 2015. "Market integration and price convergence in the European Union," Journal of International Money and Finance, Elsevier, vol. 56(C), pages 55-74.
    6. Richard Friberg, 2003. "Common Currency, Common Market?," CERS-IE WORKING PAPERS 0305, Institute of Economics, Centre for Economic and Regional Studies.
    7. Catherine Gendron-Saulnier & Marc Santugini, 2013. "Noisy Learning and Price Discrimination: Implications for Information Dissemination and Profits," Cahiers de recherche 1335, CIRPEE.

    More about this item

    Keywords

    price discrimination; market integration; law of one price.;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • F15 - International Economics - - Trade - - - Economic Integration
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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