Due to potential abuse of the market power at wholesale and retail market level for natural gas the Federal Cartel Office in Germany prohibited further forward integration of gas importing firms with retail incumbents from 2005/2006 to 2010. The Authority argued that the very few dominant gas...

The paper develops a framework to enforce anti-predation rules that explicitly takes the intervention stage into account. In particular, it is proposed to improve predation enforcement by focusing on two channels: refining the current regime, and amending it. With respect to the refinement of...

The paper characterises the building blocks of a framework to enforce antipredation rules and subsequently evaluates selected enforcement options in a Cournot-type duopoly predation model. Differentiating between a no rule approach, an ex ante approach and two ex post approaches, it is shown...

The paper provides a comprehensive survey of the economics behind the fight against hard core cartels. Differentiating between four subsequent stages - characterisation, welfare effects, enforcement and evaluation - the paper pays particular attention to cartel detection methods, the derivation...