Belenzon, Sharon and Schankerman, Mark
Spreading the word: geography, policy and university knowledge diffusion.
Economics of industry,
STICERD, London, UK.
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Using new data on citations to university patents and scientific publications, and measures of distance based on Google maps, we study how geography affects university knowledge diffusion. We show that knowledge flows from patents are localized in two respects: they decline sharply with distance up to about 100 miles, and they are strongly constrained by state borders, controlling for distance. While distance also constrains knowledge spillovers from publications, the state border does not. We investigate how the strength of the state border effect varies with university and state characteristics. It is larger for patents from public, as compared to private, universities and this is partly explained by the local development policies of universities. The border effect is larger in states with stronger non-compete laws that affect intra-state labor mobility, and those with greater reliance on in-state educated scientists and engineers. We confirm the impact of non-compete statutes by studying a policy reform in Michigan that introduced such restrictions.
||© 2010 The Authors
||knowledge spillovers, diffusion, geography, university technology transfer, patents, scientific publications
|Library of Congress subject classification:
||H Social Sciences > HB Economic Theory
L Education > LC Special aspects of education
|Journal of Economic Literature Classification System:
||K - Law and Economics > K4 - Legal Procedure, the Legal System, and Illegal Behavior > K41 - Litigation Process
L - Industrial Organization > L2 - Firm Objectives, Organization, and Behavior > L24 - Contracting Out; Joint Ventures; Technology Licensing
O - Economic Development, Technological Change, and Growth > O3 - Technological Change; Research and Development > O31 - Innovation and Invention: Processes and Incentives
O - Economic Development, Technological Change, and Growth > O3 - Technological Change; Research and Development > O34 - Intellectual Property Rights: National and International Issues
||Departments > Economics
Collections > Economists Online
Research centres and groups > Suntory and Toyota International Centres for Economics and Related Disciplines (STICERD)
||18 Apr 2011 08:28
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