Effects of patent length on R&D: a quantitative DGE analysis
AbstractThis paper develops an R&D-growth model and calibrates the model to aggregate data of the US economy to quantify a structural relationship between patent length, R&D and consumption. Under parameter values that match the empirical flow-profit depreciation rate of patents and other key features of the US economy, extending the patent length beyond 20 years leads to a negligible increase in R&D despite equilibrium R&D underinvestment. In contrast, shortening the patent length leads to a significant reduction in R&D and consumption. Finally, this paper also analytically derives and quantifies a dynamic distortionary effect of patent length on capital investment.
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Bibliographic InfoArticle provided by Springer in its journal Journal of Economics.
Volume (Year): 99 (2010)
Issue (Month): 2 (March)
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Web page: http://www.springerlink.com/link.asp?id=108909
Innovation-driven growth; Intellectual property rights; Patent length; R&D; O31; O34;
Other versions of this item:
- Angus C. Chu, 2009. "Effects of Patent Length on R&D: A Quantitative DGE Analysis," IEAS Working Paper : academic research 09-A001, Institute of Economics, Academia Sinica, Taipei, Taiwan, revised Dec 2009.
- Chu, Angus C., 2009. "Effects of Patent Length on R&D: A Quantitative DGE Analysis," MPRA Paper 16918, University Library of Munich, Germany.
- O34 - Economic Development, Technological Change, and Growth - - Technological Change; Research and Development; Intellectual Property Rights - - - Intellectual Property and Intellectual Capital
- O31 - Economic Development, Technological Change, and Growth - - Technological Change; Research and Development; Intellectual Property Rights - - - Innovation and Invention: Processes and Incentives
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