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Bargaining failure and freedom to operate : re-evaluating the effect of patents on cumulative innovation
Gaessler, Fabian; Harhoff, Dietmar; Sorg, Stefan - 2019
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
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Patents, freedom to operate, and follow-on innovation : evidence from post-grant opposition
Gäßler, Fabian; Harhoff, Dietmar; Sorg, Stefan; … - 2024
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
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Filling the gap : the consequences of collaborator loss in corporate R&D
Poege, Felix; Gäßler, Fabian; Hoisl, Karin; Harhoff, … - 2022
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
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Citation frequency and the value of patented innovation
Harhoff, Dietmar; Narin, Francis; Scherer, Frederic M.; … - 1997
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
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Firm formation and regional spillovers : evidence from Germany
Harhoff, Dietmar - 1995
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
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Das Mannheimer Innovationspanel
Harhoff, Dietmar; Licht, Georg - 1993
gleichzeitig die deutsche Teilerhebung der in allen EG-Ländern durchgeführten 'Community Innovation Survey' dar. Der Fragebogen …
Persistent link: https://www.econbiz.de/10011622173
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Die Evolution der bundesdeutschen Forschungs- und Technologiepolitik : Rückblick und Bestandsaufnahme
Fier, Andreas - 2001
We consider the development of German federal research and technology (R&T) policies since the 1960s and sketch the evolution of today's highly differentiated and complex set of policy instruments. Advances from economic theory and empirical results are reflected in this evolution, but have not...
Persistent link: https://www.econbiz.de/10014461006
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Firm formation and regional spillovers - evidence from Germany
Harhoff, Dietmar - 1995
Persistent link: https://www.econbiz.de/10013428009
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Citation frequency and the value of patented innovation
Harhoff, Dietmar (contributor) - 1997
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/10013428229