The importance of geographical proximity for interaction and knowledge sharing has been discussed extensively in economic geography. There is increasing consensus that it is one out of many types of proximities that might be relevant. We argue that proximity may be a crucial driver for agents to connect and exchange knowledge, but too much proximity between these agents on any of the dimensions might harm their innovative performance at the same time. In a study on knowledge networks in the Dutch aviation industry, we test this so-called proximity paradox empirically. We find evidence that the proximity paradox holds to some degree. Our study clearly shows that cognitive, social and geographical proximity are crucial for explaining the knowledge network of the Dutch aviation industry. But while it takes cognitive, social and geographical proximity to exchange knowledge, we found evidence that proximity lowers firms' innovative performance, but only in the cognitive dimension.

No abstract

This paper aims at explaining whether R&D subsidies, the engagement in collaboration networks and the location influence the patent activities of biotech firms in Germany! We demonstrate that R&D subsidies focusing on single firms do not increase patent intensity, while subsidies which are granted to joint R&D projects do so to a certain extent. The number of knowledge links firms have is not influencing performance, but the type of network partners has an effect. We found strong evidence that some but not too much cognitive distance between collaboration partners and being located in a cluster have a positive effect.JEL classification: O33, O38, R58

No abstract

No abstract