The Selection Effects (and Lack Thereof) in Patent Litigation: Evidence from Trials

Verfasser / Beitragende:
[Alan C. Marco]
Ort, Verlag, Jahr:
2004
Enthalten in:
Topics in Economic Analysis & Policy, 4/1(2004-09-13)
Format:
Artikel (online)
ID: 378898779
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245 1 4 |a The Selection Effects (and Lack Thereof) in Patent Litigation: Evidence from Trials  |h [Elektronische Daten]  |c [Alan C. Marco] 
520 3 |a Using a selection corrected probit, I estimate the probability that patents will be found valid and infringed at trial. I combine for the first time detailed adjudication data with detailed patent data. I find that the selection effects for validity adjudications and infringement adjudications differ systematically. Additionally, infringement estimates do not appear to suffer from a substantial selection bias. The results highlight the importance of correctly specifying the selection mechanism in policy analysis. In contrast with previous studies, I find that the win rate for patents that go to trial is biased towards 50%. The bias is much more substantial for validity decisions, where I find unconditional win rates of 75% for adjudicated patents and 85% for matched patents. Win rates conditional on adjudication are below 60%. 
540 |a ©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston 
690 7 |a Patent Litigation  |2 nationallicence 
690 7 |a Selection  |2 nationallicence 
690 7 |a Patent Value  |2 nationallicence 
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