haku: @journal_id 1275 / yhteensä: 203
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| Tekijä: | Schankerman, M. |
| Otsikko: | How valuable is patent protection? Estimates by technology field |
| Lehti: | Rand Journal of Economics
1998 : SPRING, VOL. 29:1, p. 77-107 |
| Asiasana: | VALUATION PATENTS ESTIMATION |
| Kieli: | eng |
| Tiivistelmä: | The author presents evidence on the private value of patent rights in France for different technology fields and nationalities of ownership, using nonparametric techniques and a parametric model of patent renewal. The distribution of the value of patent rights is highly skewed, patent protection is a significant but not the major source of private returns to R&D, and these characteristics vary across technology fields. |
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