The main argument commonly put forward against retail price deregulation in Germany's telecommunications markets is the concern that otherwise the former monopoly supplier may engage in predatory pricing. And even though some game theoretic models show that predation is sometimes possible, this...

This paper summarizes the main results of a survey, which we conducted in May 2000 among German-speaking economists about their views on economics publications. Our results indicate that the world market for economics publications is not fully integrated across countries, but it appears to be at...

This paper analyzes a sequential game where firms decide about outsourcing the production of a non-specific input good to an imperfectly competitive input market. We apply the taxonomy of business strategies introduced by Fudenberg and Tirole (1984) to characterize the different equilibria. We...

This paper examines the consequences of introducing mobile number portability (MNP). As MNP allows consumers to keep their telephone number when switching providers, it reduces consumers’ switching costs. However, MNP may also cause consumer ignorance if telephone numbers no longer identify...