Showing 1 - 7 of 7
Persistent link: https://www.econbiz.de/10010502815
Supercedes 15-03 We employ a unique data set to examine the spatial clustering of private R&D labs. Instead of using fixed spatial boundaries, we develop a new procedure for identifying the location and size of specific R&D clusters. Thus, we are better able to identify the spatial locations of...
Persistent link: https://www.econbiz.de/10012935396
Superceded by 16-25. This working paper supersedes WP 12-22, WP 11-42, and WP 10-33. We employ a unique data set to examine the spatial clustering of private R&D labs, and, using patent citations data, we provide evidence of localized knowledge spillovers within these clusters. Jaffe,...
Persistent link: https://www.econbiz.de/10012937041
We employ a unique data set to examine the spatial clustering of private R&D labs, and, using patent citations data, we provide evidence of localized knowledge spillovers within these clusters. Jaffe, Trajtenberg, and Henderson (1993, hereafter JTH) provide an aggregate measure of the importance...
Persistent link: https://www.econbiz.de/10012937534
Persistent link: https://www.econbiz.de/10011688993
Persistent link: https://www.econbiz.de/10011689383
Persistent link: https://www.econbiz.de/10011845054