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...

This paper investigates the existence of a possible media bias by analyzing the impact of automobile manufacturer's 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 impact...

This paper analyzes the impact on mobile telephony diffusion patterns of the two predominant payment regimes, calling party pays (CPP) and receiving party pays (RPP), for mobile termination services. By applying instrumental variable techniques to panel data we account for a possible...

This paper examines empirically the role of market structure for the influence of spill-over effects on R&D-cooperations. The results of a microeconometric analysis, based on firm data on innovation, let in general presume that with intensified competition also the influence of spillovers on...

This paper examines empirically the theoretical relationship between external knowledge and innovation success. Special emphasis is posed on the effects that arise from various types of spillovers and how these effects are influenced by firm-specific absorptive capacities. The results of the...

This paper examines empirically the theoretical relationship between spillover effects, in the sense of unintended knowledge transfer, and cooperations in research and development (R&D). According to the results of a logistic regression analysis which has been based on micro-level data, firms...