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Endogenous Mergers in Concentrated Markets


  • Persson, Lars

    () (The Research Institute of Industrial Economics)

  • Horn, Henrik

    (Institute for International Economic Studies)


This paper proposes an approach for predicting the pattern of mergers when different mergers are feasible. It generalizes the traditional IO approach, employing ideas on coalition-formation from cooperative game theory. The model suggests that in concentrated markets, mergers are conductive to market structures with large industry profits, and thus points to a conflict between private and social incentives. It is shown how mergers may be undertaken in order to preempt other possible, and socially more desirable, mergers. The model also throws light on the formation of research joint ventures and tariff-jumping foreign direct investment.

Suggested Citation

  • Persson, Lars & Horn, Henrik, 1998. "Endogenous Mergers in Concentrated Markets," Working Paper Series 513, Research Institute of Industrial Economics.
  • Handle: RePEc:hhs:iuiwop:0513

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    References listed on IDEAS

    1. Horn, Henrik & Persson, Lars, 2001. "Endogenous mergers in concentrated markets," International Journal of Industrial Organization, Elsevier, vol. 19(8), pages 1213-1244, September.
    2. Fridolfsson, Sven-Olof & Stennek, Johan, 1999. "Why Mergers Reduce Profits, and Raise Share Prices," Working Paper Series 511, Research Institute of Industrial Economics, revised 03 Dec 2001.
    3. Kamien, Morton I. & Zang, Israel, 1991. "Competitively cost advantageous mergers and monopolization," Games and Economic Behavior, Elsevier, vol. 3(3), pages 323-338, August.
    4. Barros, Pedro Pita, 1998. "Endogenous mergers and size asymmetry of merger participants," Economics Letters, Elsevier, vol. 60(1), pages 113-119, July.
    5. Stephen W. Salant & Sheldon Switzer & Robert J. Reynolds, 1983. "Losses From Horizontal Merger: The Effects of an Exogenous Change in Industry Structure on Cournot-Nash Equilibrium," The Quarterly Journal of Economics, Oxford University Press, vol. 98(2), pages 185-199.
    6. Nilssen, Tore & Sorgard, Lars, 1998. "Sequential horizontal mergers," European Economic Review, Elsevier, vol. 42(9), pages 1683-1702, November.
    7. Persson, Lars, 1998. "The Auctioning of a Failing Firm," Working Paper Series 514, Research Institute of Industrial Economics.
    8. Perry, Martin K & Porter, Robert H, 1985. "Oligopoly and the Incentive for Horizontal Merger," American Economic Review, American Economic Association, vol. 75(1), pages 219-227, March.
    9. Ray, Debraj & Vohra, Rajiv, 1999. "A Theory of Endogenous Coalition Structures," Games and Economic Behavior, Elsevier, vol. 26(2), pages 286-336, January.
    10. Greenberg, Joseph, 1994. "Coalition structures," Handbook of Game Theory with Economic Applications,in: R.J. Aumann & S. Hart (ed.), Handbook of Game Theory with Economic Applications, edition 1, volume 2, chapter 37, pages 1305-1337 Elsevier.
    11. Bloch, Francis, 1996. "Sequential Formation of Coalitions in Games with Externalities and Fixed Payoff Division," Games and Economic Behavior, Elsevier, vol. 14(1), pages 90-123, May.
    12. Hart, Sergiu & Kurz, Mordecai, 1983. "Endogenous Formation of Coalitions," Econometrica, Econometric Society, vol. 51(4), pages 1047-1064, July.
    13. Gaudet, Gerard & Salant, Stephen W., 1992. "Mergers of producers of perfect complements competing in price," Economics Letters, Elsevier, vol. 39(3), pages 359-364, July.
    14. Joseph Farrell & Carl Shapiro, 1990. "Asset Ownership and Market Structure in Oligopoly," RAND Journal of Economics, The RAND Corporation, vol. 21(2), pages 275-292, Summer.
    15. Yi, Sang-Seung, 1997. "Stable Coalition Structures with Externalities," Games and Economic Behavior, Elsevier, vol. 20(2), pages 201-237, August.
    16. Morton I. Kamien & Israel Zang, 1990. "The Limits of Monopolization Through Acquisition," The Quarterly Journal of Economics, Oxford University Press, vol. 105(2), pages 465-499.
    17. Raymond Deneckere & Carl Davidson, 1985. "Incentives to Form Coalitions with Bertrand Competition," RAND Journal of Economics, The RAND Corporation, vol. 16(4), pages 473-486, Winter.
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    More about this item


    Endogenous mergers; coalition formation;

    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


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