The majority of industrial organizations literature on network externalities looks at firm behavior under given market characteristics. The present paper instead asks the question whether the presence of network…
This paper uses Granger non{causality tests to analyze if channel competition exists between the companion websites of 93 German newspapers observed between I/1998 and II/2005. It provides econometric evidence…
This paper investigates to what extent the usage of information and communication technology (ICT) fosters innovation activities by facilitating more flexible organisational structures in firms. We distinguish…
An Internet retailer’s (e-tailer’s) outstanding virtual location enhances the probability of being noticed by potential customers. The notion of a virtual location for e-tailers refers to the analogy to the…
We analyze the relationship between website visits, magazine demand and the demand for advertising pages using Granger non-causality tests on the basis of an extensive and externally audited quarterly data set…
Informations- und Kommunikationstechnologien (IKT) spielen als Basistechnologie für die gesamtwirtschaftlichen Innovations- und Wachstumspotenziale eine Schlüsselrolle. Der Bericht beschreibt die Struktur und…
In order to assess the productivity effects of information and communication technologies (ICT), regressions based on cross-sectional firm-level data may yield unreliable results for the commonly employed…