The spatial distribution of inventor networks

Inventor networking has become both more feasible with improved telecommunication and more important as it usually produces research of higher quality. Despite overwhelming evidence on the benefits of collaboration, patent data from 1994 to 2001 in Sweden demonstrate that inventor networks are not very common. Moreover, the spatial distribution of inventor networks is not uniform. It appears that agglomeration measured both as employment density and as industry diversity, plays a role in explaining networking. Our results indicate that inventor networks are more likely to exist in densely populated areas with a diversified industry. Market size has a negative impact on networking in that we can observe that inventor networks are less common in large metropolitan areas, ceteris paribus. Hence, it supports the proposition that networking can act as a substitute to agglomeration. Our results also suggest that researchers in dense areas will not only collaborate more; they will also collaborate over longer distance.