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Invalid but infringed? : an analysis of Germany’s bifurcated patent litigation system
Cremers, Katrin; Gaessler, Fabian; Harhoff, Dietmar; … - 2014
We analyze the impact of the probabilistic nature of patents on the functioning of Germany’s bifurcated patent litigation system where infringement and validity of a patent are decided independently by different courts. We show that bifurcation creates situations in which a patent is held...
Persistent link: https://www.econbiz.de/10010416329
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Do spillovers stimulate incremental or drastic product innovations? : Hypotheses and evidence from German establishment data
Jirjahn, Uwe (contributor); Kraft, Kornelius (contributor) - 2006
We estimate the determinants of various types of product innovation. Knowledge spillovers from rivals have a positive … exert no such independent influence on drastic innovation activities. The results support the hypothesis that establishments …
Persistent link: https://www.econbiz.de/10003319674
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Spillovers of innovation activities and their profitability
Czarnitzki, Dirk (contributor); Kraft, Kornelius (contributor) - 2007
Knowledge spillovers to competitors are regarded as an important aspect of the innovation process. While a company …
Persistent link: https://www.econbiz.de/10003607681
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Mitarbeiteranreizsysteme und Innovationserfolg
Czarnitzki, Dirk (contributor); Kraft, Kornelius (contributor) - 2007
Wir diskutieren die Faktoren für eine erfolgreiche Umsetzung eines Systems des betrieblichen Vorschlagswesens und anderer Maßnahmen zur Stimulierung des Innovationserfolgs. Im Anschluss wird die Wirkung des betrieblichen Vorschlagswesens auf den Innovationserfolg empirisch überprüft. Als...
Persistent link: https://www.econbiz.de/10003607696
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License expenditures of incumbents and potential entrants : an empirical analysis of firm behavior
Czarnitzki, Dirk (contributor); Kraft, Kornelius (contributor) - 2005
variables the motives for innovation expenditures are also taken into account. We differentiate between firms which intend to …
Persistent link: https://www.econbiz.de/10002822031
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Capital control, debt financing and innovative activity
Czarnitzki, Dirk (contributor); Kraft, Kornelius (contributor) - 2004 - [Elektronische Ressource]
Persistent link: https://www.econbiz.de/10002368257
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On the profitability of innovative assets
Czarnitzki, Dirk (contributor); Kraft, Kornelius (contributor) - 2004 - [Elektronische Ressource]
Persistent link: https://www.econbiz.de/10002040129
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Measuring the impact of innovation on firm value : a new approach
Czarnitzki, Dirk (contributor); Kraft, Kornelius (contributor) - 2002
Persistent link: https://www.econbiz.de/10001735363
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Innovationsanreize in einem strukturellen Oligopolmodell
Harhoff, Dietmar - 1997 - Revidiert: Februar 1997
The paper develops an oligopoly model of innovation and applies it to data from the Mannheim Innovation Panel. The … complexity, etc. are important determinants of overall innovation expenditures, but not for R&D specifically. If legal protection … affect the innovation activity of the firm. Specification tests derived from the theoretical model do not lead to a rejection …
Persistent link: https://www.econbiz.de/10011440888
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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/10011440946