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Merger Externalities in Oligopolistic Markets

Author

Listed:
  • Klaus Gugler
  • Florian Szücs
Abstract
We quantify externalities on profitability and market shares of competing firms in oligopolistic markets through the transition from an n to an n - 1 player oligopoly after a merger. Competitors are identified via the European Commission's market investigations and our methodology allows us to distinguish the externality due to the change in market structure from the merger effect. We obtain results consistent with the predictions of standard oligopoly models: rivals expand their output and increase their profits, whereas merging firms are negatively affected. This indicates that on average the market power effects of large mergers outweigh the efficiencies.

Suggested Citation

  • Klaus Gugler & Florian Szücs, 2013. "Merger Externalities in Oligopolistic Markets," Discussion Papers of DIW Berlin 1321, DIW Berlin, German Institute for Economic Research.
    • Handle: RePEc:diw:diwwpp:dp1321
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    References listed on IDEAS

    as
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    Full references (including those not matched with items on IDEAS)

    Citations

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    Cited by:

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    2. M. Grajek & K. Gugler & T. Kretschmer & I. Mişcişin, 2019. "Static or Dynamic Efficiency: Horizontal Merger Effects in the Wireless Telecommunications Industry," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 55(3), pages 375-402, November.
    3. Ralph Siebert, 2017. "Heterogeneous Merger Impacts on Competitive Outcomes," CESifo Working Paper Series 6607, CESifo.
    4. repec:spo:wpecon:info:hdl:2441/44gofgf80399mp5fq5q50vv5t6 is not listed on IDEAS
    5. Pauline Affeldt & Reinhold Kesler, 2021. "Competitors’ Reactions to Big Tech Acquisitions: Evidence from Mobile Apps," Discussion Papers of DIW Berlin 1987, DIW Berlin, German Institute for Economic Research.
    6. Joel Stiebale & Florian Szücs, 2022. "Mergers and market power: evidence from rivals' responses in European markets," RAND Journal of Economics, RAND Corporation, vol. 53(4), pages 678-702, December.
    7. repec:spo:wpmain:info:hdl:2441/44gofgf80399mp5fq5q50vv5t6 is not listed on IDEAS
    8. Linde, Sebastian & Siebert, Ralph B., 2023. "Exploring the incremental merger value from multimarket and technology arguments," International Journal of Industrial Organization, Elsevier, vol. 87(C).
    9. Keil, Jan, 2017. "The trouble with approximating industry concentration from Compustat," Journal of Corporate Finance, Elsevier, vol. 45(C), pages 467-479.
    10. Haucap, Justus & Rasch, Alexander & Stiebale, Joel, 2019. "How mergers affect innovation: Theory and evidence," International Journal of Industrial Organization, Elsevier, vol. 63(C), pages 283-325.
    11. Tsuyoshi Toshimitsu, 2019. "Analysis of Merger Control in a Network Products Market," Manchester School, University of Manchester, vol. 87(5), pages 678-693, September.
    12. Tsuyoshi Toshimitsu, 2017. "Merger Paradox in a Network Product Market: A Horizontally Differentiated Three-Firm Model," Discussion Paper Series 167, School of Economics, Kwansei Gakuin University, revised Sep 2017.
    13. Ralph B. Siebert, 2019. "Estimating Differential Dynamic Merger Effects on Market Structure and Entry in Related Markets," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 55(3), pages 431-458, November.
    14. repec:hal:wpspec:info:hdl:2441/44gofgf80399mp5fq5q50vv5t6 is not listed on IDEAS
    15. repec:hal:spmain:info:hdl:2441/44gofgf80399mp5fq5q50vv5t6 is not listed on IDEAS
    16. Cabolis, C. & Manasakis, C. & Moreno, D. & Petrakis, E., 2021. "The interactions of R&D investments and horizontal mergers," Journal of Economic Behavior & Organization, Elsevier, vol. 187(C), pages 507-534.

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    More about this item

    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L40 - Industrial Organization - - Antitrust Issues and Policies - - - General
    • G34 - Financial Economics - - Corporate Finance and Governance - - - Mergers; Acquisitions; Restructuring; Corporate Governance

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