NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Scott Shane

Dept. of Economics
Case Western Reserve University
10900 Euclid Ave.
Cleveland, OH 44106

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NBER Working Papers and Publications

August 2007The Effects of Patent Litigation on University Licensing Efforts
with Deepak Somaya
in Academic Science and Entrepreneurship: Dual Engines of Growth, Adam Jaffe, Josh Lerner, Scott Stern, Marie Thursby, organizers
May 2003Appropriability and the timing of innovation: Evidence from MIT inventions
with Emmanuel Dechenaux, Brent Goldfarb, Marie C. Thursby: w9735
At least since Arrow (1962), the effects of appropriability on invention have been well studied, but there has been little analysis of the effect of appropriability on the commercialization of existing inventions. Exploiting a database of 805 attempts by private firms to commercialize inventions licensed from MIT between 1980 and 1996, we explore the influence of several appropriability mechanisms on the commercialization and termination of projects to develop products based on university inventions. Our central hypothesis is that the relationship between a licensee's decision to either terminate or commercialize the invention is driven by the current market value of the invention, as well as the option value of delaying its commercialization. We use a competing risks framework that allows...
 
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