Abstract Utilizing Connor’s International Cartel Database and employing difference-in-differences methodology, we find that market concentration, the number of buyers and cartel duration have significant impacts on cartel overcharges. We also find that the European Commission’s 2006 guidelines on the method of setting fines for cartel infringements seem to have decreased cartel overcharges in the EU. In addition, the EU’s cartel damages directive of 2014 (2014/104/EU) appears to have increased private damage payments. Overall, we find support that these two changes in EU competition policy have a reversing impact on the otherwise increasing trend of cartel overcharges, as these measures tend to make infringements more costly at least in the EU.
Justus Haucap (Mon,) studied this question.