Abstract This paper studies competition in the German market for mobile telecommunications, motivated by recent suggestions that T-Mobile and Vodafone possess a position of collective dominance. Allegedly, their position of joint dominance is secured through a combination of first-mover...

There is an ongoing debate on the degree of integration of European wholesale power markets. A major task of the European Union is the creation of a common market in Europe and a common power market is an important part of this goal. The literature analyzing the degree of integration of European...

This paper analyzes the existence of a possible media bias by determining the impact of the automobile manufactures' advertisements on the probability that two leading German car magazines review their products. By accounting for a possible endogeneity bias, we find a positive impact of...

This paper investigates the existence of a possible media bias by analyzing the impact of automobile manufacturers’ advertisements on automobile reviews in a leading German car magazine. By accounting for both endogeneity and sample selection using a two-step procedure, we find a positive...

Recent studies provide clear evidence that the quality of telecommunications infrastructure has strong impacts on economic growth. Especially in Germany there is a controversial debate how to stimulate telecommunications investment to foster the introduction of Next Generation Networks. To find...