Arbeitspapier
Exploring the tail of patented invention value distributions
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 skewed distributions values account for a large fraction of the cumulative value over all observations. Several tests were conducted to pin down more precisely the nature of the high-value tail distribution. Three highly skew alternatives were evaluated by graphical and maximum likelihood techniques: the two-parameter log normal, the one-parameter Pareto-Levy, and the three-parameter Singh-Maddala distribution. A two-parameter log normal distribution appears to provide the best fit to our patented invention value data.
- Language
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Englisch
- Bibliographic citation
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Series: WZB Discussion Paper ; No. FS IV 97-27
- Classification
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Wirtschaft
- Event
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Geistige Schöpfung
- (who)
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Harhoff, Dietmar
Scherer, Frederic M.
Vopel, Katrin
- Event
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Veröffentlichung
- (who)
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Wissenschaftszentrum Berlin für Sozialforschung (WZB)
- (where)
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Berlin
- (when)
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1997
- Handle
- Last update
-
10.03.2025, 11:43 AM CET
Data provider
ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft. If you have any questions about the object, please contact the data provider.
Object type
- Arbeitspapier
Associated
- Harhoff, Dietmar
- Scherer, Frederic M.
- Vopel, Katrin
- Wissenschaftszentrum Berlin für Sozialforschung (WZB)
Time of origin
- 1997
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