Leniency in Antitrust Enforcement: Theory and Practice
Wouter P. J. Wils
King's College London; European Commission
World Competition: Law and Economics Review, Vol. 30, No. 1, March 2007
This paper discusses the theory and practice of leniency in antitrust enforcement, i.e. the granting of immunity from penalties or the reduction of penalties for antitrust violations in exchange for cooperation with the antitrust enforcement authorities. After a description of the practice of leniency in the US and in the EU, and of its history, the paper analyses the positive effects and the possible negative effects of leniency on optimal antitrust enforcement, and the extent to which these effects can be measured. Objections of principle and institutional problems that may constitute obstacles to the introduction of leniency policies are discussed, as well as some further issues, namely the impact on the effectiveness of leniency of criminal penalties on individuals, of follow-on private damages actions, and of penalties in other jurisdictions, "Amnesty Plus," and positive financial rewards or bounties.
Number of Pages in PDF File: 47
Keywords: antitrust, cartels, leniency, immunity, enforcement, penalties
JEL Classification: K21, K42, L40, L49
Date posted: October 24, 2006 ; Last revised: November 27, 2013
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