We develop a dynamic duopoly model of R&D competition to improve the quality of a finalgood. The innovation process is … production model under two distinct intellectual property right (IPR) regimes,essentially a patent system with and without a … other hand, depends onthe relative magnitudes of the costs of initial innovation and improvements. In particular, aresearch …

This paper provides new information, not available from other sources, on the characteristics ofthe innovation process … for short) of 9,017 patents granted by theEuropean Patent Office (EPO) between 1993 and 1997, located in France, Germany …

foreign patent owners. This paper uses an exogenous event of compulsory licensingafter World War I under the Trading with the … Enemy Act to examine the long run effects of compulsorylicensing on domestic invention. Difference-in-differences analyses … of nearly 200,000 chemical inventionssuggest that compulsory licensing increased domestic invention by at least 20 …

and new knowledgegenerated we use counts of patent filings per county. The proposed geographic spillin is tested for theUS … and implementing spatial statistical methods. The data setis comprised of primary inventor utility patent filings per …

innovation. Yet, firms do patent, as indicated by the largenumber of patents that are granted. This paper offers a possible … resolution to this puzzle.It takes a simplified version of a duopoly innovation race, and studies the patenting decisionof an … innovator who has private information about the improvability of her innovation.In this setting, it is shown that a firm may use …

Patent trolls appropriate profits from innovation solely by enforcing patents against infringers.They are often … effectively terminate the troll business. Inthis paper, we shed light on this issue by empirically analyzing trolls’ patent …

the capacity of China’s NIS in creating indigenous innovation.We provide insights drawing upon patent data and using … patent families to determine the valueof the underlying invention. For the timeframe we studied, China’s comparative … of patent applications mirror both, the improved protection ofintellectual property rights and increasing capacity for …

1999-2004 and measureinnovation performance by the (value-adjusted) number of patent applications at theEuropean Patent … scientistscontribute substantially more to innovation than R&D workers hired from other firms who, inturn, contribute slightly less to … industrial innovation than recent university graduates. Bycontrast, immobile workers add little to the innovative activity of …