What percentage of innovations are patented? empirical estimates for European firms
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- Devinney, Timothy M., 1993. "How well do patents measure new product activity?," Economics Letters, Elsevier, vol. 41(4), pages 447-450.
- Griliches, Zvi, 1990.
"Patent Statistics as Economic Indicators: A Survey,"
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- Zvi Griliches, 1998. "Patent Statistics as Economic Indicators: A Survey," NBER Chapters, in: R&D and Productivity: The Econometric Evidence, pages 287-343 National Bureau of Economic Research, Inc.
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- Harabi, N., 1993.
"Appropriabiblity of Technical Innovations: An Empirical Analysis,"
31a, Universitat Zurich - Wirtschaftswissenschaftliches Institut.
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- 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.
- Samuel Kortum & Josh Lerner, 1997.
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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.
- Edwin Mansfield, 1986. "Patents and Innovation: An Empirical Study," Management Science, INFORMS, vol. 32(2), pages 173-181, February.
- 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.
- 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.
- 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.
- Scherer, F. M., 1983. "The propensity to patent," International Journal of Industrial Organization, Elsevier, vol. 1(1), pages 107-128, March.
- 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.
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