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The Economics of Platforms: A Theory Guide for Competition Policy

Author

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  • Bruno Jullien

    (TSE-R - Toulouse School of Economics - UT Capitole - Université Toulouse Capitole - UT - Université de Toulouse - EHESS - École des hautes études en sciences sociales - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement)

  • Wilfried Sand-Zantman

Abstract

We propose an analysis of platform competition based on the academic literature with a view towards competition policy. First, we discuss to which extent competition can emerge in digital markets and show which forms it can take. In particular, we underline the role of dynamics, but also of platform differentiation, consumers multi-homing and beliefs to allow competition in platform markets. Second, we analyze competition policy issues and discuss how rules designed for standard markets can perform in two-sided markets. We show that multi-sided externalities create new opportunities for anti-competitive conducts, often related to pricing and contractual imperfections.
(This abstract was borrowed from another version of this item.)

Suggested Citation

  • Bruno Jullien & Wilfried Sand-Zantman, 2021. "The Economics of Platforms: A Theory Guide for Competition Policy," Post-Print halshs-03476144, HAL.
    • Handle: RePEc:hal:journl:halshs-03476144
    DOI: 10.1016/j.infoecopol.2020.100880
    Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-03476144
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    7. Piolatto, A. & Schuett, Florian, 2022. "Information vs Competition : How Platform Design Affects Profits and Surplus," Other publications TiSEM 43e43ee1-c784-4b60-9d62-e, Tilburg University, School of Economics and Management.
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    15. Martin Peitz, 2023. "Governance and Regulation of Platforms," CRC TR 224 Discussion Paper Series crctr224_2023_480, University of Bonn and University of Mannheim, Germany.
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    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices
    • L86 - Industrial Organization - - Industry Studies: Services - - - Information and Internet Services; Computer Software
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

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