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crisis has brought the optimal design of pharmaceutical patent policy to the fore. In this paper we evaluate patent policy in … the US pharmaceutical industry. We estimate the effect of patent length and scope on generic entry prior to the expiration … of new drug patents using two quasi-experimental approaches: one based on changes in patent laws and another on the …
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We examine how R&D portfolios of drug pipelines affect pharmaceutical licensing, controlling firm size, diversity, and competitors in R&D and product markets. The data collected comprises 329 license-outs and 434 license-ins closed by 54 Japanese pharmaceutical companies between 1997 and 2007....
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