Inventor Mobility and Knowledge Transmission in Nanotechnology

author: Gerald Marschke, Department of Economics and Department of Public Administration & Policy, University at Albany, State University of New York
.administrator: Michelle Sagan Gonçalves, University of Massachusetts Amherst
published: Feb. 25, 2009,   recorded: October 2008,   views: 3152
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Description

Using U.S. patent records in nanotechnology, 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, A and B, where A and B are in the ``Chemicals, misc.'' subclass, 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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