We investigate the regional emergence of new information technology start-ups in Germany. The largest share of these start-ups is located in cities or densely populated regions that are well equipped with institutions of higher education and research. The empirical analysis clearly indicates the...

The value of social network analysis is critically dependent on the comprehensive and reliable identification of actors and their relationships. We compare regional knowledge networks based on different types of data sources, namely, co-patents, co-publications, and publicly subsidized...

We investigate the role of entrepreneurship culture and the historical knowledge base of a region on current levels of new business formation in innovative industries. The analysis is for German regions and covers the time period 1907-2014. We find a pronounced positive relationship between high...

The development of inventor networks is characterized by the addition of a significant number of new inventors, while a considerable number of incumbent inventors discontinue. We estimate the persistence of knowledge in regional inventor networks using alternative assumptions about knowledge...

We investigate the role played by different fields of academic knowledge and various types of higher education institutions in the emergence of innovative start-ups in a region. We show that education and research in the applied and natural sciences have the strongest effect on the emergence of...

The development of inventor networks is characterized by the addition of a significant number of new inventors, while a considerable number of incumbent inventors discontinue. We estimated the persistence of knowledge in the inventor networks of nine German regions using alternative assumptions...

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...