Kann eine Wettbewerbsbeschränkung Effizienzziele verfolgen? Diese Frage beantwortet der Autor mit einem deutlichen "Nein!". Ob eine Wettbewerbsbeschränkung vorliegt, eine marktbeherrschende Stellung missbraucht wird oder der Wettbewerb im Gemeinsamen Markt im Sinne der...

After Brexit, the United Kingdom is unlikely to continue pursuing integration with other member states of the European Union, including through competition policy. As a result, the time is ripe to reconsider the role of the single market imperative in competition law, in particular in relation...

We analyze the competitive effects of backward vertical integration by a partially vertically integrated firm that competes with non-integrated firms both upstream and downstream. We show that vertical integration is procompetitive under fairly general conditions. It can be anticompetitive only...

We analyze maximal cartel prices in infinitely-repeated oligopoly models under leniency where fines are linked to illegal gains, as often outlined in existing antitrust regulation, and detection probabilities depend on the degree of collusion. We introduce cartel culture that describes how...

We provide a comprehensive quantitative assessment of cartels and the related cartel enforcement process in the European Union (EU) from 2001 to 2015. In a first step, we present a detailed characterization of all cartel cases decided by the European Commission (EC) with respect to various...