The Role of External Linkages and Gatekeepers for the Renewal and Expansion of US Cities' Knowledge Base, 1990–2004

Breschi S. and Lenzi C. The role of external linkages and gatekeepers for the renewal and expansion of US cities’ knowledge base, 1990–2004, Regional Studies. This paper examines the role of external linkages and gatekeepers for the renewal and expansion of cities' knowledge base in US metropolitan co-invention networks. It is argued that the relative importance of direct external linkages and external relations mediated by gatekeepers varies...