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A Robust test for Consumer Welfare Enhancing Mergers Among Sellers of a Homogeneous Product

Author

Listed:
  • Froeb, L.M.
  • Werden, G.J.

Abstract

Antiturst enforcement agencies and courts use net effect on price as a touchstone for the legality of mergers. This paper derives a simple, and completely general, condition for implementing that standard when industry equilibrium is static Nash in qualities (Cournot).

Suggested Citation

  • Froeb, L.M. & Werden, G.J., 1997. "A Robust test for Consumer Welfare Enhancing Mergers Among Sellers of a Homogeneous Product," Papers 97-1, U.S. Department of Justice - Antitrust Division.
  • Handle: RePEc:fth:usjuat:97-1
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    References listed on IDEAS

    as
    1. Farrell, Joseph & Shapiro, Carl, 1990. "Horizontal Mergers: An Equilibrium Analysis," American Economic Review, American Economic Association, vol. 80(1), pages 107-126, March.
    2. Werden, Gregory J, 1991. "Horizontal Mergers: Comment," American Economic Review, American Economic Association, vol. 81(4), pages 1002-1006, September.
    3. Werden, Gregory J, 1996. "A Robust Test for Consumer Welfare Enhancing Mergers among Sellers of Differentiated Products," Journal of Industrial Economics, Wiley Blackwell, vol. 44(4), pages 409-413, December.
    4. 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.
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    Citations

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    Cited by:

    1. Kaplow, Louis & Shapiro, Carl, 2007. "Antitrust," Handbook of Law and Economics, Elsevier.
    2. Kwang Soo Cheong & Kenneth L Judd, 1997. "Mergers and Dynamic Oligopoly," Working Papers 199714, University of Hawaii at Manoa, Department of Economics.
    3. Kai Hüschelrath & Kathrin Müller, 2015. "Market Power, Efficiencies, and Entry Evidence from an Airline Merger," Managerial and Decision Economics, John Wiley & Sons, Ltd., vol. 36(4), pages 239-255, June.
    4. Gugler, Klaus & Szücs, Florian, 2016. "Merger externalities in oligopolistic markets," International Journal of Industrial Organization, Elsevier, vol. 47(C), pages 230-254.
    5. Kai Hüschelrath, 2009. "Detection Of Anticompetitive Horizontal Mergers," Journal of Competition Law and Economics, Oxford University Press, vol. 5(4), pages 683-721.
    6. Nilsson, Mats, 2005. "Electric power oligopoly and suspicious minds--a critique of a recently approved merger," Energy Policy, Elsevier, vol. 33(15), pages 2023-2036, October.
    7. Ralph Siebert, 2017. "Heterogeneous Merger Impacts on Competitive Outcomes," CESifo Working Paper Series 6607, CESifo Group Munich.
    8. Zhiqi Chen & Gang Li, 2017. "Do Merger Efficiencies Always Mitigate Price Increases?," Carleton Economic Papers 17-02, Carleton University, Department of Economics.
    9. Marie Goppelsroeder & Maarten Pieter Schinkel & Jan Tuinstra, 2008. "QUANTIFYING THE SCOPE FOR EFFICIENCY DEFENSE IN MERGER CONTROL: THE WERDEN-FROEB-INDEX -super-," Journal of Industrial Economics, Wiley Blackwell, vol. 56(4), pages 778-808, December.
    10. Braid, Ralph M., 2001. "Cost-reducing horizontal mergers that leave prices unchanged in models of spatial competition," Economics Letters, Elsevier, vol. 71(3), pages 421-427, June.
    11. Cristina Pardo-Garcia & Jose Sempere-Monerris, 2015. "Equilibrium mergers in a composite good industry with efficiencies," SERIEs: Journal of the Spanish Economic Association, Springer;Spanish Economic Association, vol. 6(1), pages 101-127, March.
    12. Oscar De la garza & Daniel Flores, 2015. "Equivalent tests for mergers in homogeneous goods industries," Economics Bulletin, AccessEcon, vol. 35(2), pages 1379-1382.
    13. Robert Willig, 2011. "Unilateral Competitive Effects of Mergers: Upward Pricing Pressure, Product Quality, and Other Extensions," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 39(1), pages 19-38, August.
    14. Marie Goppelsroeder & Maarten Pieter Schinkel & Jan Tuinstra, 2006. "Quantifying the Scope for Efficiency Defense in Merger Control: The Werden-Froeb-Index," Tinbergen Institute Discussion Papers 06-074/1, Tinbergen Institute.
    15. Berardino Cesi & Walter Ferrarese, 2015. "Insider's Dilemma: a General Solution in a Repeated Game," CEIS Research Paper 350, Tor Vergata University, CEIS, revised 14 Jul 2015.
    16. Avdasheva, Svetlana & Tsytsulina, Dina, 2015. "The effects of M&As in highly concentrated domestic vis-à-vis export markets: By the example of Russian metal industries," Research in International Business and Finance, Elsevier, vol. 34(C), pages 368-382.

    More about this item

    Keywords

    MERGERS;

    JEL classification:

    • K20 - Law and Economics - - Regulation and Business Law - - - General
    • K21 - Law and Economics - - Regulation and Business Law - - - Antitrust Law

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