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...

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...

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...

The increasing usage of mobile communication and the declining demand for fixed line telephony in Europe make the analysis of substitutional effects between fixed and mobile networks a key aspect for future telecommunication regulation. Using a unique dataset which contains information on all 27...

This paper investigates the degree of fixed–mobile call substitution (FMCS) within different European countries. We use quarterly data from 2004 to mid-2010 on 16 mainly Western European countries. By applying dynamic panel data techniques, we are able to estimate short- and long-run...

This paper investigates the degree of fixed-mobile call substitution (FMCS). We use quarterly data from 2004 to mid 2010 on 16 mainly Western European countries. By applying dynamic panel data techniques, we are able to estimate short- and long-run elasticities. The own-price and cross-price...

A wide range of media provide information on many products based on reviews or expert opinions. A natural question is, whether these reviews and expert opinions have any effect on sales. A small but growing literature in economics and marketing science deals with this issue, by testing the...