This paper investigates the effect of related and unrelated variety on regional growth in West Germany. In particular, we analyze the role of regional absorptive capacity and new business formation for these effects. We find that West German regions benefit from both types of varieties. The...

Empirical analyses show that the employment effects of start-ups are highest in agglomerations, whereas moderately congested areas exhibit only modest effects, and weak or even no significant effects could be found in rural regions. This paper will set out to show that these discrepancies arise...

We analyze the spatial diffusion of knowledge in laser technology in West Germany from 1960, when this technology began, until 2005. Laser technology research has been nearly exclusively conducted in regions that are home to a university with a physics or electrical engineering department, an...

The aim of this paper is to test how geographical and technological proximity relate to a particular industry’s innovative output. Two mechanisms are therefore tested, i.e. agglomeration economies and the regional exploitation of technological proximity. A new dataset is applied, which...

Cluster studies have shown that innovation can be understood as the result of an inter- organizational process, where a division of labor with regard to exploration and exploitation exists among the actors inside the cluster. A cluster is ambidextrous if it manages to balance innovative...

Cluster policies aim at improving collaboration between co-located actors to address systemic failures. As yet, cluster policy evaluations are mainly concerned with effects on firm performance. Some recent studies move to the system level by assessing how the structure of actor-based knowledge...

The concept of Bridging Technologies (BTs) refers to technologies which are important for the regional knowledge base by connecting different fields and thereby enabling technological development. We provide analytical tools to identify BTs and study their evolution over time. We apply these...