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R&D and productivity in German manufacturing firms

Harhoff, Dietmar - 1994 - Rev. ed

Persistent link: https://www.econbiz.de/10000151509

A life cycle labour supply model with taxes estimated on German panel data : the case of parallel preferences

Laisney, François; Lechner, Michael; Soest, Arthur van; … - 1993

Persistent link: https://www.econbiz.de/10003890029

Do married women base their labour supply decisions on gross or marginal wages?

König, Heinz; Laisney, François; Lechner, Michael; … - 1993

Persistent link: https://www.econbiz.de/10003890036

Citation frequency and the value of patented innovation

Harhoff, Dietmar; Narin, Francis; Scherer, Frederic M.; … - 1997

ermittelt, die den Patentschutz durch Zahlung der Verlängerungsgebühren von 1977 bis 1995 in Deutschland aufrechterhalten hatten …

Persistent link: https://www.econbiz.de/10011417779

Exploring the tail of patented invention value distributions

Harhoff, Dietmar; Scherer, Frederic M.; Vopel, Katrin - 1997

Patent renewal studies reveal a highly rightward-skewed distribution of patent values. Our approach elicits valuations approximating those of the patented invention. This paper focuses on the full-term patents of the application year 1977 held by West German and U.S. residents. The tail of...

Persistent link: https://www.econbiz.de/10011417839