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Large market games, the law of one price, and market structure

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  • Toraubally, Waseem A.

Abstract

This paper introduces a new class of market games featuring multiple posts per commodity, in which trading posts are privately owned. It is demonstrated via three robust counterexamples, that in this setting the law of one price fails, thus showing, contrary to longstanding belief in the literature, that price dispersion in large market games is extremely robust. Most importantly, it is established that even in economies with a continuum of small agents and infinitely many atoms (all of whom can arbitrage prices if they so wish), and an infinite number of markets per commodity, the set of equilibria—and the resulting market structure—is influenced, both by strategic behaviour, and private ownership of posts.

Suggested Citation

  • Toraubally, Waseem A., 2018. "Large market games, the law of one price, and market structure," Journal of Mathematical Economics, Elsevier, vol. 78(C), pages 13-26.
    • Handle: RePEc:eee:mateco:v:78:y:2018:i:c:p:13-26
    DOI: 10.1016/j.jmateco.2018.06.007
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    References listed on IDEAS

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    Cited by:

    1. Toraubally, Waseem A., 2022. "Strategic trading and Ricardian comparative advantage," Journal of Economic Behavior & Organization, Elsevier, vol. 195(C), pages 428-447.
    2. Toraubally, Waseem A., 2024. "Quantity competition in Hotellings linear city," CRETA Online Discussion Paper Series 87, Centre for Research in Economic Theory and its Applications CRETA.
    3. Toraubally, Waseem A., 2022. "Price dispersion and vanilla options in a financial market game," Finance Research Letters, Elsevier, vol. 50(C).
    4. Toraubally, Waseem A., 2019. "Arbitrage equilibria in large games with many commodities," Economics Letters, Elsevier, vol. 179(C), pages 24-28.
    5. Toraubally, Waseem A., 2023. "Comparative advantage with many goods: New treatment and results," European Journal of Operational Research, Elsevier, vol. 311(3), pages 1188-1201.

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