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Concentration horizontale et relations verticales

  • Marie-Laure Allain


  • Saïd Souam


This paper studies horizontal mergers in vertically related markets. In atwo-level Cournot model, with an intermediate and a final market, we show thatdownstream mergers inducing size effects are, ceteris paribus, more profitablethan upstream ones. Moreover, a merger at one level reduces the incentivesto merge at the other level. Endogenizing the firms’ decisions to merge byconsidering a merger game supports the previous results.

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Paper provided by Centre de Recherche en Economie et Statistique in its series Working Papers with number 2005-31.

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Length: 29
Date of creation: 2005
Date of revision:
Handle: RePEc:crs:wpaper:2005-31
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  1. 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.
  2. Roman Inderst & Christian Wey, 2001. "Bargaining, Mergers, and Technology Choice in Bilaterally Oligopolistic Industries," CIG Working Papers FS IV 01-19, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
  3. Morton I. Kamien & Israel Zang, 1988. "The Limits of Monopolization Through Acquisition," Discussion Papers 802, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  4. Steffen Ziss, 2005. "Horizontal Mergers and Successive Oligopoly," Journal of Industry, Competition and Trade, Springer, vol. 5(2), pages 99-114, June.
  5. Farrell, Joseph & Shapiro, Carl, 1990. "Horizontal Mergers: An Equilibrium Analysis," American Economic Review, American Economic Association, vol. 80(1), pages 107-26, March.
  6. Marie-Laure Allain & Saïd Souam, 2005. "Concentration horizontale et relations verticales," Working Papers 2005-31, Centre de Recherche en Economie et Statistique.
  7. 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.
  8. Salinger, Michael A, 1988. "Vertical Mergers and Market Foreclosure," The Quarterly Journal of Economics, MIT Press, vol. 103(2), pages 345-56, May.
  9. 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.
  10. Géarard Gaudet & Ngo Long, 1996. "Vertical Integration, Foreclosure, and profits in the Presence of Double Marginalization," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 5(3), pages 409-432, 09.
  11. Ramón Faulí-Oller, 1997. "On merger profitability in a cournot setting," Working Papers. Serie AD 1997-03, Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie).
  12. Fumagalli, C. & Motta, M., 1999. "Upstream Mergers, Downstream Mergers, and Secret Vertical Contracts," Economics Working Papers eco99/38, European University Institute.
  13. Lionel Janin & Benoît Menoni, 2005. "Le Contrôle des concentrations en France : Une analyse empirique des avis du Conseil de la Concurrence," Working Papers 2005-37, Centre de Recherche en Economie et Statistique.
  14. Salant, Stephen W & Switzer, Sheldon & Reynolds, Robert J, 1983. "Losses from Horizontal Merger: The Effects of an Exogenous Change in Industry Structure on Cournot-Nash Equilibrium," The Quarterly Journal of Economics, MIT Press, vol. 98(2), pages 185-99, May.
  15. Andrea Bonaccorsi & Paola Giuri, 2000. "The long term evolution of vertically-related industries," LEM Papers Series 2000/01, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy.
  16. Henrick Horn & Asher Wolinsky, 1988. "Bilateral Monopolies and Incentives for Merger," RAND Journal of Economics, The RAND Corporation, vol. 19(3), pages 408-419, Autumn.
  17. Dobson, Paul W & Waterson, Michael, 1997. "Countervailing Power and Consumer Prices," Economic Journal, Royal Economic Society, vol. 107(441), pages 418-30, March.
  18. 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.
  19. Fauli-Oller, Ramon, 1997. "On merger profitability in a Cournot setting," Economics Letters, Elsevier, vol. 54(1), pages 75-79, January.
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