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...

Nach dem Vorbild börsennotierter britischer Vereine wird es auch deutschen Profifußballvereinen in absehbarer Zukunft möglich sein, sich in Aktiengesellschaften umzuwandeln. Der anschließende Börsengang soll dann den nach den jüngsten Entwicklungen im Profifußballbereich gestiegenen...

Die bundesdeutschen Fußballvereine weisen ein Umsatzvolumen auf, das dem mittelständischer Unternehmen entspricht. Gleichzeitig zeigt die hohe Verschuldung vieler Vereine, daß sie diesen Anforderungen nur unzureichend gewachsen sind. In diesem Beitrag soll anhand statistischer Auswertungen...

The anomalous inverse concentration-price relationship observed by some researchers in the newspaper market has been attributed to scale economies. In this paper we suggest that the newspaper's (or magazine's) double-product feature (i.e., news supplied to readers and advertising space supplied...

The paper characterises the building blocks of a framework to enforce anti-predation 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...

Using a panel data set of 361 German corporations for the period 1991 to 1996 we test the hypothesis that firms with more efficient governance structures have higher profitability. To determine efficiency we compare firms with respect to ownership concentration, the identity of owners, capital...

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...