This paper analyses the incentives of a vertical integrated Internet service provider (ISP) to block competitors from content markets. Using a simple model we find that the ISP does not block competing content providers as long as the contents are differentiated sufficiently. Exclusion only...

This paper analyses the incentives of a vertical integrated Internet service provider (ISP) to block competitors from content markets. Using a simple model we find that the ISP does not block competing content providers as long as the contents are differentiated sufficiently. Exclusion only...

This paper analyses the incentives of a vertical integrated Internet service provider (ISP) to block competitors from content markets. Using a simple model we find that the ISP does not block competing content providers as long as the contents are differentiated sufficiently. Exclusion only...

The liberalization and regulation of telecommunications markets in Germany is called, despite some adversity as a great success. Consumers enjoy, in contrast to the days of state owned monopoly, affordable and innovative products. In the center of the regulation was for almost one and a half...

Die Liberalisierung und Regulierung der Telekommunikationsmärkte in Deutschland ist trotz einiger Widrigkeiten als großer Erfolg zu bezeichnen. Verbrauchern stehen, im Gegensatz zu den Zeiten des staatlichen Monopols, preisgünstige und innovative Produkte zur Verfügung. Im Zentrum der...

Die Liberalisierung und Regulierung der Telekommunikationsmärkte in Deutschland ist trotz einiger Widrigkeiten als großer Erfolg zu bezeichnen. Verbrauchern stehen, im Gegensatz zu den Zeiten des staatlichen Monopols, preisgünstige und innovative Produkte zur Verfügung. Im Zentrum der...

This paper analyzes the impact of different payment regimes for mobile-to-mobile off-net calls on the diffusion of mobile telephony, using data on 84 countries from all over the world. Since the decision whether or not countries are likely to switch from RPP to CPP is not independent from...

This paper examines the causes and effects of mobile number portability (MNP) and provides a survey of its implementation in Europe. We first examine the competitive effects and the costs of introducing MNP. Next, we discuss how to charge for MNP. We argue that a price cap regime starting from...

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...

This paper analyses the interdependency between the market for music recordings and concert tickets, assuming that there are positive indirect network effects both from the record market to ticket sales for live performances and vice versa. In a model with two interrelated Hotelling lines prices...