NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Publications by Arvids Ziedonis

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October 2001The Geographic Reach of Market and Non-Market Channels of Technology Transfer: Comparing Citations and Licenses of University Patents
with David C. Mowery: w8568
The growth of high-technology clusters in the United States suggests the presence of strong regional agglomeration effects that reflect proximity to universities or other research institutions. Using data on licensed patents from the University of California, Stanford University, and Columbia University, this paper compares the geographic 'reach' of knowledge flows from university inventions through two important channels: non-market 'spillovers' exemplified by patent citations and market contracts (licenses). We find that knowledge flows through market transactions to be more geographically localized than those operating through non-market 'spillovers.' Moreover, the differential effects of distance on licenses and citations are most pronounced for exclusively licensed university paten...
January 2001Numbers, Quality, and Entry: How Has the Bayh-Dole Act Affected U.S. University Patenting and Licensing?
with David C. Mowery
in Innovation Policy and the Economy, Volume 1, Adam B. Jaffe, Josh Lerner and Scott Stern, editors

Contact and additional information for this authorAll papers and publicationsWorking Papers onlyWorking Papers with publication info

 
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