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

Colorado College Working Paper No. 2006-03

23 Pages Posted: 15 Jan 2002

See all articles by Daniel K. N. Johnson

Daniel K. N. Johnson

Colorado College - Department of Economics and Business

Date Written: August 2006

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 Classification: L6, N9, O3, R1

Suggested Citation

Johnson, Daniel Kent Neil, It's a Small(Er) World: The Role of Geography in Biotechnology Innovation (August 2006). Colorado College Working Paper No. 2006-03, Available at SSRN: https://ssrn.com/abstract=296813 or http://dx.doi.org/10.2139/ssrn.296813

Daniel Kent Neil Johnson (Contact Author)

Colorado College - Department of Economics and Business ( email )

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United States
719-389-6654 (Phone)
719-389-6927 (Fax)

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

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