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We examine whether open source software (OSS) patent pools contributed by large software incumbents influence new OSS product entry by start-up software firms. In particular, we analyze the impact of a major OSS patent pool—the Patent Commons—established by IBM in 2005. We find that increases in the size of the OSS patent pool related to a software segment(More)
We examine whether the introduction of a patent commons, a special type of royalty free patent pool available to the open source software (OSS) community influences new OSS product entry by start-up software firms. In particular, we analyze the impact of The Commons—established by Open Source Development Labs and IBM in 2005. We find that increases in the(More)
Temporomandibular disorders (TMDs) following motor vehicle collisions (MVCs) may result from direct orofacial trauma but also occur in patients with whiplash-associated disorder (WAD) without such trauma. TMDs may not be identified at the time of first assessment, but may develop weeks or more after the MVC. TMDs in WAD appear to occur predominantly in(More)
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