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The effects of remedies on merger activity in oligopoly

  • Dertwinkel-Kalt, Markus
  • Wey, Christian

We analyze the effects of structural remedies on merger activity in a Cournot oligopoly when the antitrust agency applies a consumer surplus standard. Remedies increase the scope for pro�table and acceptable mergers, while divestitures to an entrant �rm are most effective in this regard. Remedial divestitures are most attractive from a social welfare point of view, when the merging parties can extract the entire gains associated with the asset sale. We also show that the merging parties have strong incentives to search for the most efficient buyer. Finally, we identify instances so that a remedy rule induces strictly price-decreasing mergers.

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Paper provided by Heinrich‐Heine‐Universität Düsseldorf, Düsseldorf Institute for Competition Economics (DICE) in its series DICE Discussion Papers with number 81.

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Date of creation: 2012
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Handle: RePEc:zbw:dicedp:81
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  1. Duso, Tomaso & Gugler, Klaus & Yurtoglu, Burcin B., 2011. "How effective is European merger control?," European Economic Review, Elsevier, vol. 55(7), pages 980-1006.
  2. Clougherty, Joseph A. & Seldeslachts, Jo, 2011. "The Deterrence Effects of U.S. Merger Policy Instruments," CEPR Discussion Papers 8482, C.E.P.R. Discussion Papers.
  3. Spector, David, 2003. "Horizontal mergers, entry, and efficiency defences," International Journal of Industrial Organization, Elsevier, vol. 21(10), pages 1591-1600, December.
  4. Farrell, J. & Shapiro, C., 1988. "Horizontal Mergers: An Equilibrium Analysis," Papers 17, Princeton, Woodrow Wilson School - Discussion Paper.
  5. Perry, Martin K & Porter, Robert H, 1985. "Oligopoly and the Incentive for Horizontal Merger," American Economic Review, American Economic Association, vol. 75(1), pages 219-27, March.
  6. Volker Nocke & Michael D. Whinston, 2010. "Dynamic Merger Review," Journal of Political Economy, University of Chicago Press, vol. 118(6), pages 1201 - 1251.
  7. Thibaud VERGE, 2009. "Horizontal Mergers, Structural Remedies and Consumer Welfare in a Cournot Oligopoly with Assets," Working Papers 2009-10, Centre de Recherche en Economie et Statistique.
  8. Helder Vasconcelos, 2010. "Efficiency Gains And Structural Remedies In Merger Control," Journal of Industrial Economics, Wiley Blackwell, vol. 58(4), pages 742-766, December.
  9. McAfee, R Preston & Williams, Michael A, 1992. "Horizontal Mergers and Antitrust Policy," Journal of Industrial Economics, Wiley Blackwell, vol. 40(2), pages 181-87, June.
  10. Cabral, Luis M. B., 2003. "Horizontal mergers with free-entry: why cost efficiencies may be a weak defense and asset sales a poor remedy," International Journal of Industrial Organization, Elsevier, vol. 21(5), pages 607-623, May.
  11. 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.
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