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The Informational Advantages or Disadvantages of Horizontal Mergers

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  • Gal-Or, Esther

Abstract

The author's goal is to predict whether horizontal mergers can gene rate informational advantages to firms facing a stochastic market. At the Cournot equilibrium, each nonmerging firm benefits from an informational advantage that exceeds the informational advantage (if it exists) of each merging firm. More over, if signals are highly correlated compared with the precision of private signals, and if the number of colluding firms is small relative to the whole market, an informational disadvantage is impose d on each firm that colludes. At the Bertrand equilibrium, the informational advantage of each merging firm exceeds the informational advantage of each nonmerging firm, and the latter is positive. Copyright 1988 by Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association.

Suggested Citation

  • Gal-Or, Esther, 1988. "The Informational Advantages or Disadvantages of Horizontal Mergers," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 29(4), pages 639-661, November.
    • Handle: RePEc:ier:iecrev:v:29:y:1988:i:4:p:639-61
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    Cited by:

    1. Schmutzler, Armin & Bühler, Stefan & Borek, Thomas, 2003. "Weddings with Uncertain Prospects - Mergers under Asymmetric Information," CEPR Discussion Papers 3839, C.E.P.R. Discussion Papers.
    2. Le Pape, Nicolas & Zhao, Kai, 2014. "Horizontal mergers and uncertainty," Economics - The Open-Access, Open-Assessment E-Journal (2007-2020), Kiel Institute for the World Economy (IfW Kiel), vol. 8, pages 1-31.
    3. Mariana Cunha & Paula Sarmento & Hélder Vasconcelos, 2014. "Uncertain Efficiency Gains and Merger Policy," FEP Working Papers 527, Universidade do Porto, Faculdade de Economia do Porto.
    4. Yaron Azrieli & Dan Levin, 2020. "Stable unions," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 69(2), pages 337-365, March.
    5. Banal-Estanol, Albert, 2007. "Information-sharing implications of horizontal mergers," International Journal of Industrial Organization, Elsevier, vol. 25(1), pages 31-49, February.
    6. Lars-Hendrik Röller & Johan Stennek & Frank Verboven, 2006. "Efficiency Gains from Mergers," Chapters, in: Fabienne IIzkovitz & Roderick Meiklejohn (ed.), European Merger Control, chapter 3, Edward Elgar Publishing.
    7. Qiu, Larry D. & Zhou, Wen, 2006. "International mergers: Incentives and welfare," Journal of International Economics, Elsevier, vol. 68(1), pages 38-58, January.
    8. Hisashi Sawaki, 2015. "Horizontal Mergers Under Asymmetric Information About Synergies," Australian Economic Papers, Wiley Blackwell, vol. 54(3), pages 167-184, September.

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