How do geographically mobile innovators influence network formation?

In this paper, I aim to assess the influence of spatial mobility of knowledge workers on the formation of ties of scientific and industrial collaboration across European regions. Co-location has been traditionally invoked to ease formal collaboration between individuals and firms. Tie formation is costly and decreases as distance between the partners involved increases, making ties between co-located individuals more likely than between spatially separated peers. In some instances, highly-skilled actors might become mobile and bridge regional networks across long physical distances. The effect of trust and mutual understanding between members of a co-located community may well survive the end of their co-localisation, and therefore the formation of networks across the space may overcome long distances. In this paper I estimate a fixed effects logit model to ascertain whether there exists a ‘previous co-location premium’ in the formation of networks across European regions. The role of mobility in network formation has been lately discussed elsewhere, but, to my knowledge, barely empirically tested.