Publisher
Springer Science and Business Media LLC
Reference49 articles.
1. Acosta, M., Coronado, D., Ferrándiz, E., & León, M. D. (2011). Factors affecting inter-regional academic scientific collaboration within Europe: The role of economic distance. Scientometrics, 87(1), 63–74.
2. Agrawal, A., & Goldfarb, A. (2008). Restructuring research: Communication costs and the democratization of university innovation. American Economic Review, 98(4), 1578–1590.
3. Anderson, J. E., & Van Wincoop, E. (2003). Gravity with gravitas: A solution to the border puzzle. American Economic Review, 93(1), 170–192.
4. Asheim, B. T., & Gertler, M. S. (2006). The geography of innovation: regional innovation systems. The Oxford Handbook of Innovation. Oxford University Press.
5. Bai, J. J., Jin, W., & Zhou, S. (2021). Proximity and knowledge spillovers: Evidence from the introduction of new airline routes. SSRN. https://doi.org/10.2139/ssrn.3851753