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Spillover effects in oligopolistic markets

  • Gugler, Klaus
  • Szücs, Florian

We estimate the spillovers on firm profitability and market shares in oligopolistic markets through the transition from an n to an n-1 player oligopoly after a merger in the industry. Competitors are identified via the European Commission s market investigations and our methodology allows us to disentangle the spillover due to the change in market structure from the merger effect. We obtain results consistent with the predictions of standard oligopoly models: non-merging rivals expand their output and increase their profits, while merging firms barely break even. The size of the effect is larger in industries with fewer oligopolists and higher initial profits.

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Paper provided by Verein für Socialpolitik / German Economic Association in its series Annual Conference 2013 (Duesseldorf): Competition Policy and Regulation in a Global Economic Order with number 79905.

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Date of creation: 2013
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Handle: RePEc:zbw:vfsc13:79905
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  1. Sven-Olof Fridolfsson & Johan Stennek, 2005. "Why Mergers Reduce Profits And Raise Share Prices-A Theory Of Preemptive Mergers," Journal of the European Economic Association, MIT Press, vol. 3(5), pages 1083-1104, 09.
  2. Joseph Farrell and Carl Shapiro., 1988. "Horizontal Mergers: An Equilibrium Analysis," Economics Working Papers 8880, University of California at Berkeley.
  3. Clougherty, Joseph & Duso, Tomaso, 2008. "The impact of horizontal mergers on rivals: Gains to being left outside a merger," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 239, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
  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 219-27, March.
  5. Eckbo, B. Espen, 1983. "Horizontal mergers, collusion, and stockholder wealth," Journal of Financial Economics, Elsevier, vol. 11(1-4), pages 241-273, April.
  6. Stillman, Robert, 1983. "Examining antitrust policy towards horizontal mergers," Journal of Financial Economics, Elsevier, vol. 11(1-4), pages 225-240, April.
  7. Orley Ashenfelter & Daniel Hosken, 2010. "The Effect of Mergers on Consumer Prices: Evidence from Five Mergers on the Enforcement Margin," Journal of Law and Economics, University of Chicago Press, vol. 53(3), pages 417 - 466.
  8. repec:pri:cepsud:140weinberg is not listed on IDEAS
  9. Klaus Gugler & Ralph Siebert, 2007. "Market Power versus Efficiency Effects of Mergers and Research Joint Ventures: Evidence from the Semiconductor Industry," The Review of Economics and Statistics, MIT Press, vol. 89(4), pages 645-659, November.
  10. Leemore Dafny, 2009. "Estimation and Identification of Merger Effects: An Application to Hospital Mergers," Journal of Law and Economics, University of Chicago Press, vol. 52(3), pages 523-550, 08.
  11. 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.
  12. Kim, E Han & Singal, Vijay, 1993. "Mergers and Market Power: Evidence from the Airline Industry," American Economic Review, American Economic Association, vol. 83(3), pages 549-69, June.
  13. 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.
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