Showing 1 - 10 of 16
We investigate the causal effect of patent rights on cumulative innovation, using large-scale data that approximate the …
Persistent link: https://www.econbiz.de/10012139072
We study the blocking effect of patents on follow-on innovation by others. We posit that follow-on innovation requires … freedom to operate (FTO), which firms typically obtain through a license from the patentee holding the original innovation …. Where licensing fails, follow-on innovation is blocked unless firms gain FTO through patent invalidation. Using large …
Persistent link: https://www.econbiz.de/10014503038
We study the evolution of patenting in China from 1985-2019. We use a Large Language Model to measure patent importance based on patent abstracts and classify patent ownership using a comprehensive business registry. We highlight four insights. First, average patent importance declined from...
Persistent link: https://www.econbiz.de/10014504832
-in-differences design to causally identify the short-run impact of COVID-19 on innovation spending in 2020 and expected innovation spending … substantially reduced innovation expenditure not only in the first year of the pandemic (2020) but also in the two subsequent years …, indicating ’Long–Covid’ effects on innovation. In 2020, innovation expenditure fell by 4.7 % due to the pandemic. In 2022 …
Persistent link: https://www.econbiz.de/10014311916
Persistent link: https://www.econbiz.de/10014320964
We examine how collaborator loss affects knowledge workers in corporate R&D. We argue that such a loss affects the remaining collaborators not only by reducing their team-specific capital (as argued in the prior literature) but also by increasing their bargaining power over the employer, who is...
Persistent link: https://www.econbiz.de/10014458846
Through a survey, economic value estimates were obtained on 962 inventions made in the United States and Germany and on which German patent renewal fees were paid to full-term expiration in 1995. A search of subsequent U.S. and German patents yielded a count of citations to those patents....
Persistent link: https://www.econbiz.de/10011417779
Recent empirical evidence has shown that firm’s innovation behavior exhibits high persistency but not much is known … environment and asks how local knowledge spillovers affect firms' innovation persistence. The empirical analysis draws upon a … former evidence that persistency in innovation is driven by true state dependence. More importantly, we find that the local …
Persistent link: https://www.econbiz.de/10012167049
This paper studies the effect of regional spillovers on the rate of firm formation in two major West German industries for the time period from 1989 to 1993. I exploit regional variations in firm formation at the county level to identify the effects of historically given industry structure and...
Persistent link: https://www.econbiz.de/10011621492
gleichzeitig die deutsche Teilerhebung der in allen EG-Ländern durchgeführten 'Community Innovation Survey' dar. Der Fragebogen …
Persistent link: https://www.econbiz.de/10011622173