- Schmookler , J. 1962 . 'Comment' . The Rate and Direction of Inventive Activity: NBER Conference Series 13 . 1962 , Princeton. Edited by: Nelson , R. Princeton University Press .
- Pakes , A. and Simpson , M. 1989 . 'Patent Renewal Data' . Brookings Papers: Microeconomics , : 331 – 410 .
- Klevorick , A. , Levin , R. , Nelson , R. and Winter , S. 1995 . 'On the Sources and Significance of Interindustry Differences in Technological Opportunities' . Research Policy , 24 : 185 – 205 .
- Deng , Z. , Lev , B. and Narin , F. 'Science and Technology Indicators as Predictors of Stock Performance' . Financial Analysts Journal , In Press
- Lanjouw , J. , Pakes , A. and Putnam , J. 1996 . “ 'How to Count Patents and Value Intellectual Property: Uses of Patent Renewal and Application Data' ” . NBER Working Paper 5741
- Pakes , A. and Schankerman , M. 1984 . “ 'The Rate of Obsolescence of Patents, Research Gestation Lags, and the Private Rate of Return to Research Resources' ” . In R&D Patents and Productivity , Edited by: Griliches , Z. Chicago : University of Chicago Press .
- Schankerman , M. and Pakes , A. 1986 . 'Estimates of the Value of Patent Rights in European Countries During the Post- 1950 Period' . The Economic Journal , 96 : 1052 – 1076 .
- Trajtenberg , M. 1990 . 'A Penny for Your Quotes: Patent Citations and the Value of Innovations' . Rand Journal of Economics , 21 : 172 – 187 .
- Carpenter , M. , Narin , F. and Woolf , P. 1981 . 'Citation Rates to Technologically Important Patents' . World Patent Information , 4 : 160 – 163 .
- Breitzman , A. and Narin , F. 1996 . 'A Case for Patent Citation Analysis in Litigation' . The Law Works , 3 : 10 – 11 . 26 – 27 .
- Albert , M. , Avery , D. , McAllister , P. and Narin , F. 1991 . 'Direct Validation of Citation Counts as Indicators of Industrially Important Patents' . Research Policy , 20 : 251 – 259 .
- Harhoff , D. , Narin , F. , Scherer , F. and Vopel , K. 'Citation Frequency and the Value of Patented Inventions' . The Review of Economics and Statistics , In Press
- Pakes , A. 1986 . 'Patents as Options: Some Estimates of the Value of Holding European Patent Stocks' . Econometrica , 54 : 755 – 784 .
Reprints and Corporate Permissions
Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?
To request a reprint or corporate permissions for this article, please click on the relevant link below:
Academic Permissions
Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?
Obtain permissions instantly via Rightslink by clicking on the button below:
If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.
Related research
People also read lists articles that other readers of this article have read.
Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.
Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.