Optimal Leniency Programs When Firms Have Imperfect Cumulative and Asymmetric Evidence
Posted by Social Science Research Network
Optimal Leniency Programs When Firms Have Imperfect Cumulative and Asymmetric Evidence – Marc Blatter (University of Bern), Winand Emons (University of Bern – Department of Economics ; Centre for Economic Policy Research), and Silvio Sticher (University of Bern)
ABSTRACT: An antitrust authority deters collusion using fines and a leniency program. Unlike in most of the earlier literature, our firms have imperfect cumulative evidence of the collusion. That is, cartel conviction is not automatic if one firm reports: reporting makes conviction only more likely, the more so, the more firms report. Furthermore, the evidence is distributed asymmetrically among firms. Asymmetry of the evidence can increase the cost of deterrence if the high-evidence firm chooses to remain silent. Minimum-evidence standards may counteract this effect. Under a marker system only one firm reports; this may increase the cost of deterrence.
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