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  Citation Frequency and the Value of Patented Innovation

Harhoff, D., Narin, F., Scherer, F. M., & Vopel, K. (1999). Citation Frequency and the Value of Patented Innovation. Review of Economics and Statistics, 81(3), 511-515.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0019-9312-F Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0019-9313-D
Genre: Journal Article

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http://www.jstor.org/stable/2646773 (Publisher version)
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 Creators:
Harhoff, Dietmar1, Author           
Narin, Francis1, Author
Scherer, F. M. 1, Author
Vopel , Katrin1, Author
Affiliations:
1External Organizations, ou_persistent22              

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 Abstract: Through a survey, private economic value estimates were obtained on 964 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 counts of citations to those patents. Patents renewed to full-term were significantly more highly cited than patents allowed to expire before their full term. The higher an invention's economic value estimate was, the more the patent was subsequently cited.

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Language(s): eng - English
 Dates: 1999
 Publication Status: Issued
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Title: Review of Economics and Statistics
Source Genre: Journal
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Pages: - Volume / Issue: 81 (3) Sequence Number: - Start / End Page: 511 - 515 Identifier: ISSN: 0034-6535
ZDB: 207962-8