Innovation and Polycentrism in the Mediterranean Latin Arc

Polycentrism is today a central keyword in European spatial planning. In this paper it is assumed as a perspective for the analysis of spatial configurations in the geography of innovation. The research analyses the relation between technological potential and hie-rarchical organization of local industrial systems (clusters) in the field of high technology. The paper focuses on South-Western Europe, highlighting the endowment of the systems in terms of urban functions connected to scientific research and productive milieu