Retailer bargaining power is an important aspect of many international antitrust investigations. Size and market share analysis are often the cornerstones of bargaining power identi cation. However, other factors, like consumer behavior, i.e. "one-stop shopping", can heavily a ect the bargaining...

Regulation of traditional narrow- and broadband networks remains a key issue in telecommunication policies. Due to the vertical structure of telecommunication markets and to promote investment, regulatory policies in many European Member States focus on wholesale obligations (so-called remedies)...

For more than 15 years, Local Loop Unbundling (LLU) has been introduced as a regulatory mean to overcome the bottleneck control over the last mile of copper cable owned by incumbent operators. However, despite its assumed positive effects on market entry and competition intensity, negative...

The fundamental change of energy policy in Germany (the so-called Energiewende) has lead to a discussion how the security of electricity supply will be affected by the heavily subsidised expansion of electricity generation from renewable energies, as electricity generation from renewable...

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...

Price levels and movements on gasoline and diesel markets are heavily debated among consumers, policy-makers, and competition authorities alike. In this paper, we empirically investigate how and why price levels differ across gasoline stations in Germany, using eight months of data from a novel...

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...