There is a growing concern that minority shareholding (MS) in rival firms may facilitate collusion. To examine this concern, we exploit the fact that leniency programs (LPs) are generally recognized as a shock that destabilizes collusive agreements and study the effect that the introduction of...

We investigate the impact of cartel breakdowns on merger activity. Merging information on cartel cases decided by the European Commission (EC) between 2000 and 2011 with a detailed data set of worldwide merger activity, we find that, first, the average number of all merger transactions increase...

We study the consumer welfare effects of mergers in airline networks. Based on the development of a general classification of affected routes, we apply a difference-in-differences approach to exemplarily investigate the price effects of the America West Airlines - US Airways merger completed in...

The last few decades have witnessed substantial liberalization trends in various industries and countries. Starting with the deregulation of the US airline industry in 1978, regulatory restructuring took place in further network industries such as telecommunications, electricity or railways in...

We study patterns of entry and exit in the German interurban bus industry in the first three years after its deregulation in January 2013. Using a comprehensive data set of all firm and route entries and exits, we find that the industry grew much quicker than originally expected – with...

Public and Private Enforcement of Competition Law in Europe - Introduction and Overview -- Public Enforcement of Anti-Cartel Laws - Theory and Empirical Evidence -- Leniency Programmes and the Structure of Cartels - Remarks from an Economic Perspective -- The Role of Fines in the Public...