Abstract

http://ssrn.com/abstract=2025625
 
 

References (24)



 


 



Where are the Eco-Innovators? Analysis of the Knowledge Flows between Successive Generations of Green Technology Innovations


Daniel K. N. Johnson


Colorado College - Department of Economics and Business

Jeff Moore


Colorado College - Department of Economics and Business

Kristina M. Lybecker


Colorado College - Department of Economics & Business

March 2012

Colorado College Working Paper 2012-02

Abstract:     
This paper examines the location of innovations within green technology, using U.S. patent citation data to trace their inter-generational knowledge flows over time. Clustering is clearly evident, and we use multivariate left-censored Tobit regression analysis to control for identifiable factors, to show that the distance between successive innovators has not been rising over time. The interesting exception is nuclear energy in which distance appears to be decreasing over time. If we consider only inter-city transfers, the waste management also becomes more concentrated over time, while transportation declusters.

Number of Pages in PDF File: 7

Keywords: Geographical Clustering, Patents, Knowledge Flows, Patents, Green Technology

JEL Classification: Q55, L9, L2.

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Date posted: March 19, 2012  

Suggested Citation

Johnson, Daniel K. N. and Moore, Jeff and Lybecker, Kristina M., Where are the Eco-Innovators? Analysis of the Knowledge Flows between Successive Generations of Green Technology Innovations (March 2012). Colorado College Working Paper 2012-02. Available at SSRN: http://ssrn.com/abstract=2025625 or http://dx.doi.org/10.2139/ssrn.2025625

Contact Information

Daniel Kent Neil Johnson (Contact Author)
Colorado College - Department of Economics and Business ( email )
14 E Cache La Poudre Street
Colorado Springs, CO 80903
United States
719-389-6654 (Phone)
719-389-6927 (Fax)
HOME PAGE: http://faculty1.coloradocollege.edu/~djohnson
Jeff Moore
Colorado College - Department of Economics and Business ( email )
14 E Cache La Poudre Street
Colorado Springs, CO 80903
United States
Kristina M. Lybecker
Colorado College - Department of Economics & Business ( email )
14 E Cache La Poudre Street
Colorado Springs, CO 80903
United States
719-389-6445 (Phone)
719-389-6927 (Fax)
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