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Merger remedies in oligopoly under a consumer welfare standard

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  • Dertwinkel-Kalt, Markus
  • Wey, Christian

Abstract

We analyze the welfare effects of structural remedies on merger activity in a Cournot oligopoly if the antitrust agency applies a consumer surplus standard. We derive conditions such that otherwise price-increasing mergers become externality-free by the use of remedial divestitures. In this case, the consumer surplus standard ensures that mergers are only implemented if they increase social welfare. If the merging parties can extract the entire surplus from the asset sale, then the socially optimal buyer will be selected under a consumer standard.

Suggested Citation

  • Dertwinkel-Kalt, Markus & Wey, Christian, 2015. "Merger remedies in oligopoly under a consumer welfare standard," DICE Discussion Papers 187, Heinrich Heine University Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
    • Handle: RePEc:zbw:dicedp:187
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    References listed on IDEAS

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    20. Dertwinkel-Kalt, Markus & Wey, Christian, 2012. "The effects of remedies on merger activity in oligopoly," DICE Discussion Papers 81, Heinrich Heine University Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
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    Cited by:

    1. Dertwinkel-Kalt, Markus & Wey, Christian, 2016. "Structural remedies as a signaling device," Information Economics and Policy, Elsevier, vol. 35(C), pages 1-6.
    2. Koska, Onur A., 2019. "Gains from multinational competition for cross-border firm acquisition," Economics - The Open-Access, Open-Assessment E-Journal (2007-2020), Kiel Institute for the World Economy (IfW Kiel), vol. 13, pages 1-19.
    3. John W. Mayo & Mark Whitener, 2021. "The Welfare Effects of Vertical Mergers and their Remedies," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 59(2), pages 409-441, September.
    4. Shekhar, Shiva & Wey, Christian, 2017. "Uncertain merger synergies, passive partial ownership, and merger control," DICE Discussion Papers 260, Heinrich Heine University Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
    5. Döpper, Hendrik & Sapi, Geza & Wey, Christian, 2022. "A bargaining perspective on vertical integration," DICE Discussion Papers 389, Heinrich Heine University Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
    6. Markus Dertwinkel-Kalt & Christian Wey, 2021. "Evidence Production in Merger Control: The Role of Remedies," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 59(1), pages 1-12, August.
    7. Céline Bonnet & Jan Philip Schain, 2020. "An Empirical Analysis Of Mergers: Efficiency Gains And Impact On Consumer Prices," Journal of Competition Law and Economics, Oxford University Press, vol. 16(1), pages 1-35.
    8. Onur A. Koska, 2019. "A consumer-surplus standard in foreign acquisitions, foreign direct investment, and welfare," Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 155(1), pages 149-179, February.
    9. Cabolis, C. & Manasakis, C. & Moreno, Diego & Petrakis, Emmanuel, 2016. "R&D investments fostering horizontal mergers," UC3M Working papers. Economics 23280, Universidad Carlos III de Madrid. Departamento de Economía.
    10. FUKASAWA Takeshi & OHASHI Hiroshi, 2023. "Long-run Effect of a Horizontal Merger and Its Remedial Standards," Discussion papers 23001, Research Institute of Economy, Trade and Industry (RIETI).

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    More about this item

    Keywords

    Remedies; Merger control; Consumer standard; Synergies;
    All these keywords.

    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
    • K21 - Law and Economics - - Regulation and Business Law - - - Antitrust Law

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