The present assessment focuses on the antitrust action in detecting and fighting oligopolistic collusion, analyzing the development of the innovative and modern leniency policy. Following the examination of the main conditions and reasons for cartel stability and sustainability, our attempt is...

In order to fight collusive behaviors, the best scenario for competition authorities would be the possibility to analyze detailed information on firms' costs and prices, being the price-cost margin a robust indicator of market power. However, information on firms' costs is rarely available. In...