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Platform Liability and Innovation

Author

Listed:
  • Doh-Shin Jeon

    (TSE-R - Toulouse School of Economics - UT Capitole - Université Toulouse Capitole - Comue de Toulouse - Communauté d'universités et établissements 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)

  • Yassine Lefouili

    (TSE-R - Toulouse School of Economics - UT Capitole - Université Toulouse Capitole - Comue de Toulouse - Communauté d'universités et établissements 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)

  • Leonardo Madio

    (Unipd - Università degli Studi di Padova = University of Padua)

Abstract

We study a platform's incentives to remove IP-infringing products and the effects of holding the platform liable for such infringements on innovation and welfare. We first show that platform liability can lead to either higher or lower commission rates, depending on how screening affects transaction volume. We then show that liability may spur or hinder innovation, depending on the intensity of cross-group network externalities. A sufficient condition for platform liability to reduce total welfare is that it lowers innovation, in which case all market participants–the platform, innovators, imitators, and buyers—are worse off. We also provide a sufficient condition under which platform liability raises total welfare.

Suggested Citation

  • Doh-Shin Jeon & Yassine Lefouili & Leonardo Madio, 2026. "Platform Liability and Innovation," Working Papers hal-05375721, HAL.
    • Handle: RePEc:hal:wpaper:hal-05375721
    Note: View the original document on HAL open archive server: https://hal.science/hal-05375721v1
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    Cited by:

    1. is not listed on IDEAS
    2. Gambato, Jacopo & Peitz, Martin, 2025. "Platform-enabled information disclosure," International Journal of Industrial Organization, Elsevier, vol. 99(C).
    3. Yassine Lefouili & Leonardo Madio, 2022. "The economics of platform liability," European Journal of Law and Economics, Springer, vol. 53(3), pages 319-351, June.
    4. Federico Etro, 2024. "e‐Commerce platforms and self‐preferencing," Journal of Economic Surveys, Wiley Blackwell, vol. 38(4), pages 1516-1543, September.
    5. Martin Peitz, 2024. "The Economic Theory of Two-Sided Platforms," CRC TR 224 Discussion Paper Series crctr224_2024_584, University of Bonn and University of Mannheim, Germany.
    6. Martin Peitz, 2025. "Governance and Regulation of Platforms," Springer Books, in: Claude Ménard & Mary M. Shirley (ed.), Handbook of New Institutional Economics, edition 0, chapter 23, pages 565-593, Springer.
    7. Ester Manna & Alessandro De Chiara & Fernando Gómez & Juan-José Ganuza, 2023. "Platform Liability with Reputational Sanctions," Working Papers 1403, Barcelona School of Economics.
    8. De Chiara, Alessandro & Manna, Ester & Rubí-Puig, Antoni & Segura, Adrian, 2025. "Efficient copyright filters for online hosting platforms," Information Economics and Policy, Elsevier, vol. 71(C).
    9. Jeong-Yoo Kim, 2024. "Seller liability versus platform liability: optimal liability rule and law enforcement in the platform economy," European Journal of Law and Economics, Springer, vol. 58(1), pages 119-148, August.
    10. Leonardo Madio, 2023. "Content Moderation and Advertising in Social Media Platforms," "Marco Fanno" Working Papers 0297, Dipartimento di Scienze Economiche "Marco Fanno".
    11. Jay Pil Choi & Doh‐Shin Jeon, 2023. "Platform design biases in ad‐funded two‐sided markets," RAND Journal of Economics, RAND Corporation, vol. 54(2), pages 240-267, June.

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    Keywords

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    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L43 - Industrial Organization - - Antitrust Issues and Policies - - - Legal Monopolies and Regulation or Deregulation
    • L96 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Telecommunications

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