Abstract

http://ssrn.com/abstract=1471435
 
 

References (62)



 
 

Citations (11)



 


 



Breakthrough Inventions and Migrating Clusters of Innovation


William R. Kerr


Harvard University - Entrepreneurial Management Unit

September 10, 2009

Harvard Business School Entrepreneurial Management Working Paper No. 10-020

Abstract:     
We investigate the speed at which clusters of invention for a technology migrate spatially following breakthrough inventions. We identify breakthrough inventions as the top one percent of US inventions for a technology during 1975-1984 in terms of subsequent citations. Patenting growth is significantly higher in cities and technologies where breakthrough inventions occur after 1984 relative to peer locations that do not experience breakthrough inventions. This growth differential in turn depends on the mobility of the technology’s labor force, which we model through the extent that technologies depend upon immigrant scientists and engineers. Spatial adjustments are faster for technologies that depend heavily on immigrant inventors. The results qualitatively con.rm the mechanism of industry migration proposed in models like [Duranton, G., 2007. Urban evolutions: The fast, the slow, and the still. American Economic Review 97, 197.221].

Number of Pages in PDF File: 41

Keywords: Agglomeration, Clusters, Entrepreneurship, Invention, Mobility, Reallocation, R&D, Patents, Scientists, Engineers, Immigration.

JEL Classification: F2, J4, J6, O3, O4, R1, R3.

working papers series





Download This Paper

Date posted: September 11, 2009  

Suggested Citation

Kerr, William R., Breakthrough Inventions and Migrating Clusters of Innovation (September 10, 2009). Harvard Business School Entrepreneurial Management Working Paper No. 10-020. Available at SSRN: http://ssrn.com/abstract=1471435 or http://dx.doi.org/10.2139/ssrn.1471435

Contact Information

William R. Kerr (Contact Author)
Harvard University - Entrepreneurial Management Unit ( email )
Soldiers Field Road
Morgan 270C
Boston, MA 02163
United States
Feedback to SSRN


Paper statistics
Abstract Views: 1,118
Downloads: 188
Download Rank: 89,418
References:  62
Citations:  11
Paper comments
No comments have been made on this paper

© 2014 Social Science Electronic Publishing, Inc. All Rights Reserved.  FAQ   Terms of Use   Privacy Policy   Copyright   Contact Us
This page was processed by apollo7 in 0.235 seconds