European Integration and Knowledge Flows across European Regions

Using data on inventor citations and inventor collaborations, this article analyses changes in geographical patterns of knowledge flows between European regions during the period 1981-2000. It shows that inventor collaborations become less geographically localized, while inventor citations become more localized. The European integration process has a significant effect on reducing barriers to knowledge flows between new and old EU members. For inventor citations, this effect relates only to the EU enlargement of 1995 and is confined to knowledge flows from Austria, Finland and Sweden to old EU members.