By drawing information from a survey of inventors of 9,017 European patents (PatVal-EU), this paper provides novel and detailed data about the characteristics of the European inventors, the sources of their knowledge, the importance of formal and informal collaborations among researchers and...

This paper studies the geographical breadth of knowledge spillovers. Previous research suggests that knowledge spillovers benefit from geographical proximity in technologically active and rich regions more than elsewhere. An alternative view explains the geographical breadth of knowledge...

This paper examines empirically the relationship between the internal technological profile and the diversification through strategic alliances of the largest 219 industrial firms world-wide. It explores three related issues. First, the paper shows that firms? internal technological...

From a survey of the inventors of 9,017 European patents, this paper provides new information about the characteristics of European inventors, the sources of their knowledge, the importance of formal and informal collaborations, the motivations to invent, and the actual use and economic value of...

This paper provides new information, not available from other sources, on the characteristics ofthe innovation process in Europe, and on the economic use and value of European patents. Ourdata are drawn from a survey (PatVal-EU, or PatVal for short) of 9,017 patents granted by theEuropean Patent...