This paper analyses whether strategic motives for patenting influence the characteristics ofcompanies’ patent portfolios. We use the number of citations and oppositions to representthese characteristics. The investigation is based on survey and patent data from German companies.We find clear...

Although labor mobility has been recognized as a key mechanism for transferring tacit knowledge, prior research on inventors has so far hardly discussed the impact of a move on inventive performance. Additionally, existing research has neglected the differences in gains from a move between high...

This paper analyzes the causality between inventor productivity and inventor mobility. The results show that the level of education has no influence on inventor productivity. Making use of external sources of knowledge, on the contrary, has a significant effect on productivity. Finally, firm...