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Collusion et politique de la concurrence en information asymétrique

  • Thierry Penard

    (Crest)

  • Saïd Souam

    (Crest)

This article attempts to determine the optimal antitrust policy against price-fixing when competition authorities imperfectly observe firms' behaviour. By investigating or auditing on markets, authorities can detect collusion. We show that the strenght of investigations depends on the characteristics of the market, the cost of investigation, the severity of punishment and the degree of stability of the collusion. Moreover, it is shown that authorities always tolerate some degree of collusion as long as investigation is costly. The results of our paper allow us to establish some guidelines for antitrust policy.

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File URL: http://www.crest.fr/content/blogcategory/21/54/
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Paper provided by Centre de Recherche en Economie et Statistique in its series Working Papers with number 99-26.

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Date of creation: 1999
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Handle: RePEc:crs:wpaper:99-26
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  1. Gary S. Becker, 1968. "Crime and Punishment: An Economic Approach," Journal of Political Economy, University of Chicago Press, vol. 76, pages 169.
  2. A. Mitchell Polinsky & Steven Shavell, 1990. "Enforcement Costs and the Optimal Magnitude and Probability of Fines," NBER Working Papers 3429, National Bureau of Economic Research, Inc.
  3. David P. Baron & David Besanko, 1984. "Regulation, Asymmetric Information, and Auditing," RAND Journal of Economics, The RAND Corporation, vol. 15(4), pages 447-470, Winter.
  4. Fagart, M.-C. & Picard, P., 1998. "Optimal Insurance Under Random Auditing," Papers 9808, Paris X - Nanterre, U.F.R. de Sc. Ec. Gest. Maths Infor..
  5. A. Mitchell Polinsky & Steven Shavell, 1999. "The Economic Theory of Public Enforcement of Law," NBER Working Papers 6993, National Bureau of Economic Research, Inc.
  6. Besanko, David & Spulber, Daniel F, 1989. "Delegated Law Enforcement and Noncooperative Behavior," Journal of Law, Economics and Organization, Oxford University Press, vol. 5(1), pages 25-52, Spring.
  7. Robert M. Townsend, 1979. "Optimal contracts and competitive markets with costly state verification," Staff Report 45, Federal Reserve Bank of Minneapolis.
  8. Saïd Souam, 1997. "Optimal Antitrust Policy Under Different Regimes of Fines," Working Papers 97-37, Centre de Recherche en Economie et Statistique.
  9. Keith N. Hylton, 1996. "Optimal Law Enforcement and Victim Precaution," RAND Journal of Economics, The RAND Corporation, vol. 27(1), pages 197-206, Spring.
  10. Mookherjee, Dilip & Png, I P L, 1994. "Marginal Deterrence in Enforcement of Law," Journal of Political Economy, University of Chicago Press, vol. 102(5), pages 1039-66, October.
  11. Polinsky, Mitchell & Shavell, Steven, 1979. "The Optimal Tradeoff between the Probability and Magnitude of Fines," American Economic Review, American Economic Association, vol. 69(5), pages 880-91, December.
  12. Jean-Jacques Laffont & Jean Tirole, 1993. "A Theory of Incentives in Procurement and Regulation," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262121743, March.
  13. Marie-Cécile Fagart & Saïd Souam, 1999. "Optimal Contract with Random Auditing," Working Papers 99-71, Centre de Recherche en Economie et Statistique.
  14. Tirole, Jean, 1986. "Hierarchies and Bureaucracies: On the Role of Collusion in Organizations," Journal of Law, Economics and Organization, Oxford University Press, vol. 2(2), pages 181-214, Fall.
  15. Posner, Richard A, 1970. "A Statistical Study of Antitrust Enforcement," Journal of Law and Economics, University of Chicago Press, vol. 13(2), pages 365-419, October.
  16. Graetz, Michael J. & Reinganum, Jennifer F. & Wilde, Louis L., . "The Tax Compliance Game: Toward an Interactive Theory of Law Enforcement," Working Papers 589, California Institute of Technology, Division of the Humanities and Social Sciences.
  17. Nahum D. Melumad & Dilip Mookherjee, 1989. "Delegation as Commitment: The Case of Income Tax Audits," RAND Journal of Economics, The RAND Corporation, vol. 20(2), pages 139-163, Summer.
  18. James W. Friedman, 1971. "A Non-cooperative Equilibrium for Supergames," Review of Economic Studies, Oxford University Press, vol. 38(1), pages 1-12.
  19. Guesnerie, Roger & Laffont, Jean-Jacques, 1984. "A complete solution to a class of principal-agent problems with an application to the control of a self-managed firm," Journal of Public Economics, Elsevier, vol. 25(3), pages 329-369, December.
  20. Feinberg, Robert M., 1984. "Strategic and deterrent pricing responses to antitrust investigations," International Journal of Industrial Organization, Elsevier, vol. 2(1), pages 75-84, March.
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