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Inventor Mobility and Knowledge Transmission in Nanotechnology

  • Jinyoung Kim

    ()

    (Korea University)

  • Sangjoon John Lee

    (Alfred University)

  • Gerald Marschke

    ()

    (University at Albany-SUNY, NBER and IZA)

Using U.S. patent records in nanotechnoloy, we study the relationship between inventor mobility among firms and knowledge diffusion. We find evidence consistent with a story that, in one important nanotechnology subfield, when inventors move among firms they spread knowledge. In particular, we find that if we consider any two patents in the "Chemicals, misc." subclass, A and B, where A and B are assigned to different firms and where A is granted after B, patent A is more likely to cite patent B if the patent A firm employs an inventor who earlier worked for the patent B firm.

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File URL: http://econ.korea.ac.kr/~ri/WorkingPapers/w1004.pdf
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Paper provided by Institute of Economic Research, Korea University in its series Discussion Paper Series with number 1004.

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Date of creation: 2010
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Handle: RePEc:iek:wpaper:1004
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  1. Lynne G. Zucker & Michael R. Darby & Jeff S. Armstrong, 2001. "Commercializing Knowledge: University Science, Knowledge Capture, and Firm Performance in Biotechnology," NBER Working Papers 8499, National Bureau of Economic Research, Inc.
  2. DUGUET Emmanuel & MacGARVIE Megan, 2004. "How Well Do Patent Citations Measure Flows of Technology? Evidence from French Innovation Surveys," Development and Comp Systems 0411018, EconWPA.
  3. Zucker, Lynne G & Darby, Michael R & Armstrong, Jeff, 1998. "Geographically Localized Knowledge: Spillovers or Markets?," Economic Inquiry, Western Economic Association International, vol. 36(1), pages 65-86, January.
  4. Jinyoung Kim & Gerald Marschke, 2005. "Labor Mobility of Scientists, Technological Diffusion, and the Firm's Patenting Decision," RAND Journal of Economics, The RAND Corporation, vol. 36(2), pages 298-317, Summer.
  5. Manuel Trajtenberg, 1990. "A Penny for Your Quotes: Patent Citations and the Value of Innovations," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 172-187, Spring.
  6. Hall, B. & Jaffe, A. & Trajtenberg, M., 2001. "The NBER Patent Citations Data File: Lessons, Insights and Methodological Tools," Papers 2001-29, Tel Aviv.
  7. Wesley M Cohen & Richard R Nelson & John P Walsh, 2003. "Protecting Their Intellectual Assets: Appropriability Conditions and Why U.S. Manufacturing Firms Patent (Or Not)," Levine's Working Paper Archive 618897000000000624, David K. Levine.
  8. Ajay Agrawal & Iain Cockburn & John McHale, 2003. "Gone But Not Forgotten: Labor Flows, Knowledge Spillovers, and Enduring Social Capital," NBER Working Papers 9950, National Bureau of Economic Research, Inc.
  9. Jerry G. Thursby & Marie C. Thursby, 2000. "Who is Selling the Ivory Tower? Sources of Growth in University Licensing," NBER Working Papers 7718, National Bureau of Economic Research, Inc.
  10. Jarle Møen, 2000. "Is Mobility of Technical Personnel a Source of R&D Spillovers?," NBER Working Papers 7834, National Bureau of Economic Research, Inc.
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