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It's a Small(er) World: The Role of Geography in Biotechnology Innovation

Daniel K. N. Johnson
Colorado College - Department of Economics and Business

August 2006

Colorado College Working Paper No. 2006-03

Abstract:
Using patent citation data for the U.S., we test whether knowledge spillovers in biotechnology are sensitive to distance, and whether that sensitivity has changed over time. Controlling for self-citation by inventor, assignee and examiner, cohort-based regression analysis shows that physical distance is becoming less important for spillovers with time.

Keywords: biotechnology, innovation, patent, citation, distance, geography

JEL Classifications: L6, N9, O3, R1

Working Paper Series

Date posted: January 15, 2002 ; Last revised: August 29, 2006

Suggested Citation

Johnson, Daniel K. N., It's a Small(er) World: The Role of Geography in Biotechnology Innovation (August 2006). Available at SSRN: http://ssrn.com/abstract=296813 or doi:10.2139/ssrn.296813

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Contact Information

Daniel Kent Neil Johnson (Contact Author)

Colorado College - Department of Economics and Business ( email )

Colorado Springs, CO 80903
United States
719-389-6654 (Phone)
719-389-6927 (Fax)

HOME PAGE: http://faculty1.coloradocollege.edu/~djohnson