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Tying in Two†Sided Markets with Multi†Homing: Corrigendum and Comment

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  • Jay Pil Choi
  • Bruno Jullien
  • Yassine Lefouili

Abstract

We identify two issues in Choi's [2010] paper on tying in two†sided markets published in this Journal, and provide solutions to both of them. First, we point out that the equilibrium in the absence of tying requires more restrictive conditions and does not satisfy a natural equilibrium refinement criterion. We offer an alternative timing structure that validates the equilibrium derived in Choi [2010] under the conditions provided there. Second, we show that his equilibrium analysis with tying ignores a profitable deviation. We rectify this analysis under our alternative timing structure and derive the (mixed†strategy) equilibrium with tying. We also show by means of simulations that tying is welfare†enhancing whenever it is profitable, which is consistent with the main finding in Choi [2010].

Suggested Citation

  • Jay Pil Choi & Bruno Jullien & Yassine Lefouili, 2017. "Tying in Two†Sided Markets with Multi†Homing: Corrigendum and Comment," Journal of Industrial Economics, Wiley Blackwell, vol. 65(4), pages 872-886, December.
    • Handle: RePEc:bla:jindec:v:65:y:2017:i:4:p:872-886
    DOI: 10.1111/joie.12156
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    Cited by:

    1. Jullien, Bruno & Sand-Zantman, Wilfried, 2021. "The Economics of Platforms: A Theory Guide for Competition Policy," Information Economics and Policy, Elsevier, vol. 54(C).
    2. Singh, Neeraj & Kumar, Niraj & Kapoor, Sanjeev, 2022. "Consumer multihoming predisposition on food platforms: Does gender matter?," Journal of Retailing and Consumer Services, Elsevier, vol. 67(C).
    3. Yannis Bakos & Hanna Halaburda, 2020. "Platform Competition with Multihoming on Both Sides: Subsidize or Not?," Management Science, INFORMS, vol. 66(12), pages 5599-5607, December.
    4. Afilipoaie, Adelaida & Donders, Karen & Ballon, Pieter, 2022. "The European Commission's approach to mergers involving software-based platforms: Towards a better understanding of platform power," Telecommunications Policy, Elsevier, vol. 46(5).
    5. Bruno Jullien & Alessandro Pavan & Marc Rysman, 2021. "Two-sided markets, pricing, and network effects," Post-Print hal-03828345, HAL.
    6. Akifumi Ishihara & Ryoko Oki, 2021. "Exclusive content in two‐sided markets," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 30(3), pages 638-654, August.
    7. Fuyuki Saruta, 2022. "Exclusive Contracts and Multihoming Agents in Two-sided Markets," Discussion Paper Series DP2022-26, Research Institute for Economics & Business Administration, Kobe University.

    More about this item

    JEL classification:

    • D4 - Microeconomics - - Market Structure, Pricing, and Design
    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
    • L5 - Industrial Organization - - Regulation and Industrial Policy

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