This paper contributes to the analysis of the process of spatial agglomeration of innovative activities by investigating directly its determinants. Our main purpose is to identify the extent to which the degree of industrial specialisation (Marshall externalities) or diversity (Jacobs...

This paper explores the spatial distribution of innovative activity and the role of technological spillovers in the process of knowledge creation and diffusion across 175 regions of seventeen countries in Europe (the fifteen members of the pre-2004 European Union plus Switzerland and Norway)....

It is well known that firms productivity is influenced by information spillovers generated either by other firms located nearby or by direct contacts with final demand or by foreign demand in the case of traded products. In this paper we investigate a new channel of efficiency - enhancing...