What percentage of innovations are patented? empirical estimates for European firms
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- Samuel Kortum & Josh Lerner, 1997.
"Stronger Protection or Technological Revolution: What is Behind the Recent Surge in Patenting?,"
NBER Working Papers
6204, National Bureau of Economic Research, Inc.
- Kortum, Samuel & Lerner, Josh, 1998. "Stronger protection or technological revolution: what is behind the recent surge in patenting?," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 48(1), pages 247-304, June.
- Harabi, N., 1993.
"Appropriabiblity of Technical Innovations: An Empirical Analysis,"
31a, Universitat Zurich - Wirtschaftswissenschaftliches Institut.
- Harabi, Najib, 1995. "Appropriability of technical innovations an empirical analysis," Research Policy, Elsevier, vol. 24(6), pages 981-992, November.
- Harabi, Najib, 1994. "Appropriability of Technical Innovations: An Empirical Analysis," MPRA Paper 26267, University Library of Munich, Germany.
- Horstmann, Ignatius & MacDonald, Glenn M & Slivinski, Alan, 1985. "Patents as Information Transfer Mechanisms: To Patent or (Maybe) Not to Patent," Journal of Political Economy, University of Chicago Press, vol. 93(5), pages 837-58, October.
- Devinney, Timothy M., 1993. "How well do patents measure new product activity?," Economics Letters, Elsevier, vol. 41(4), pages 447-450.
- Acs, Zoltan J & Audretsch, David B, 1988. "Innovation in Large and Small Firms: An Empirical Analysis," American Economic Review, American Economic Association, vol. 78(4), pages 678-90, September.
- Zvi Griliches, 1998.
"Patent Statistics as Economic Indicators: A Survey,"
in: R&D and Productivity: The Econometric Evidence, pages 287-343
National Bureau of Economic Research, Inc.
- Griliches, Zvi, 1990. "Patent Statistics as Economic Indicators: A Survey," Journal of Economic Literature, American Economic Association, vol. 28(4), pages 1661-1707, December.
- Zvi Griliches, 1990. "Patent Statistics as Economic Indicators: A Survey," NBER Working Papers 3301, National Bureau of Economic Research, Inc.
- Edwin Mansfield, 1986. "Patents and Innovation: An Empirical Study," Management Science, INFORMS, vol. 32(2), pages 173-181, February.
- Licht, Georg & Zoz, Konrad, 1996.
"Patents and R&D: an econometric investigation using applications for German, European and US patents by German companies,"
ZEW Discussion Papers
96-19, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
- Georg LICHT & Konrad ZOZ, 1998. "Patents and R&D, An Econometric Investigation Using Applications for German, European and US Patents by German Companies," Annales d'Economie et de Statistique, ENSAE, issue 49-50, pages 329-360.
- Lerner, Josh, 1995. "Patenting in the Shadow of Competitors," Journal of Law and Economics, University of Chicago Press, vol. 38(2), pages 463-95, October.
- Scherer, F. M., 1983. "The propensity to patent," International Journal of Industrial Organization, Elsevier, vol. 1(1), pages 107-128, March.
- Richard C. Levin & Alvin K. Klevorick & Richard R. Nelson & Sidney G. Winter, 1987. "Appropriating the Returns from Industrial Research and Development," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 18(3), pages 783-832.
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