The role of geographic distance and technological complexity in US interregional co-patenting over almost two centuries
M Abbasiharofteh, T Broekel… - … and Planning A …, 2024 - journals.sagepub.com
This paper examines how geographical proximity affected interregional co-patenting links in
various technologies in the USA from 1836 to 2010. We classify technologies by their …
various technologies in the USA from 1836 to 2010. We classify technologies by their …