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http://ssrn.com/abstract=1598495
 
 

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Measuring Knowledge Spillovers: What Patents, Licenses and Publications Reveal About Innovation Diffusion


Andrew J. Nelson


University of Oregon

June 1, 2009

Research Policy, Vol. 38, No. 6, 2010

Abstract:     
Measurement of knowledge spillovers remains an important challenge. While patent citation analyses are one common empirical approach, questions persist about their efficacy and potential biases. In an effort to assess various measures of knowledge diffusion, this paper compares patent data surrounding recombinant DNA technology to licenses and publications building on the same technology. Evaluation of these measures highlights errors of both omission and over-representation in each measure, and reveals potential biases tied to organizational age and location. The results suggest that studies of knowledge diffusion can be strengthened dramatically by drawing upon multiple indicators.

Number of Pages in PDF File: 40

Keywords: Patents, licenses, publications, innovation diffusion, knowledge spillovers

JEL Classification: L3, L65, M13, O3, O32, O34, O47

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Date posted: May 7, 2010  

Suggested Citation

Nelson, Andrew J., Measuring Knowledge Spillovers: What Patents, Licenses and Publications Reveal About Innovation Diffusion (June 1, 2009). Research Policy, Vol. 38, No. 6, 2010. Available at SSRN: http://ssrn.com/abstract=1598495 or http://dx.doi.org/10.2139/ssrn.1598495

Contact Information

Andrew J. Nelson (Contact Author)
University of Oregon ( email )
Eugene, OR 97403-1208
United States
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