Estimates of the Value of Patent Rights in European Countries During thePost-1950 Period
This paper examines the distribution of the values of patent rights in the United Kingdom, France, and Germany during the post-1950 period. These values are inferred from the behavior of patentees with respect to payment of renewal fees on their patents. A simple economic model of renewal decisions is combined with data on the proportion of patents renewed at alternative ages and the renewal fee schedules to produce estimates of the distribution (and the total) value of patent rights in these countries. Moreover, the data indicate that there have been changes in the value distribution, and we follow these changes over the period. The empirical results of particular interest concern: the total value of patent rights and the relationship between changes in it and changes in the quantity of patents, the skew in the distribution of patent values, and the rate of obsolescence on the returns to patents.
|Date of creation:||Jun 1985|
|Date of revision:|
|Publication status:||published as Schankerman, Mark and Ariel Pakes. "Estimates of the Value of Patent Rightsin European Countries During the Post-1950 Period," Economic Journal, Vol. 96, (December 1986), pp. 1052-1076.|
|Contact details of provider:|| Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.|
Web page: http://www.nber.org
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Pakes, Ariel, 1985.
"On Patents, R&D, and the Stock Market Rate of Return,"
Journal of Political Economy,
University of Chicago Press, vol. 93(2), pages 390-409, April.
- Pakes, Ariel, 1985. "On Patents, R & D, and the Stock Market Rate of Return," Scholarly Articles 3436409, Harvard University Department of Economics.
- Hausman, Jerry A & Taylor, William E, 1981.
"Panel Data and Unobservable Individual Effects,"
Econometric Society, vol. 49(6), pages 1377-98, November.
- Robert Evenson, 1984. "International Invention: Implications for Technology Market Analysis," NBER Chapters, in: R&D, Patents, and Productivity, pages 89-126 National Bureau of Economic Research, Inc.
- Kenneth Arrow, 1962. "Economic Welfare and the Allocation of Resources for Invention," NBER Chapters, in: The Rate and Direction of Inventive Activity: Economic and Social Factors, pages 609-626 National Bureau of Economic Research, Inc.
- Amemiya, Takeshi, 1981. "Qualitative Response Models: A Survey," Journal of Economic Literature, American Economic Association, vol. 19(4), pages 1483-1536, December.
- Mansfield, Edwin & Schwartz, Mark & Wagner, Samuel, 1981. "Imitation Costs and Patents: An Empirical Study," Economic Journal, Royal Economic Society, vol. 91(364), pages 907-18, December.
- Ariel Pakes & Zvi Griliches, 1980. "Patents and R and D at the Firm Level: A First Look," NBER Working Papers 0561, National Bureau of Economic Research, Inc.
- Gaskins, Darius Jr., 1971. "Dynamic limit pricing: Optimal pricing under threat of entry," Journal of Economic Theory, Elsevier, vol. 3(3), pages 306-322, September.
When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:1650. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ()
If references are entirely missing, you can add them using this form.