R&D风险、创新环境与软件最优专利期限研究被引量：30

R&D Risk,Innovation Environment and the Optimal Life of Software Patent

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摘要本文在Gilbert和Shapiro(1990)的分析框架基础上,借用社会福利贴现值的模型,并分别引入创新成功概率和创新效率来研究软件专利保护的最优期限问题。认为在给定回报率条件下对于具有不同投资风险、不同创新成功率的行业,设定专利保护期限的效果可能不同;随着行业创新效率的增加,最优专利期限首先增加,但是在达到最大值后开始趋于减小,因此有必要根据具体的产业基本特征尤其是行业创新效率的高低,分别设定不同的专利期限并给予不同的专利保护。最后本文还进行了简要的应用分析。 Following Gilbert and Shapiro （1990）, this paper employs the model of discounted social welfare to study the optimal patent life of software with two new variables： probability of successful innovation and innovation efficiency. We find that given the rate of return, the effect of given patent life would be different for the different industry with different investment risk and probability of successful innovation. When the innovation efficiency increases, the optimal patent life would first increase to its maximum, and then decrease. Therefore it is necessary to set industry-specific patent lives, implementing different patent protections according to the basic characteristics of the industry, especially the value of innovation efficiency. Finally, some issues related to policy application are tackled on at the end of the paper.

作者董雪兵王争

机构地区浙江大学经济学院

出处《经济研究》 CSSCI 北大核心 2007年第9期112-120,共9页 Economic Research Journal

关键词软件专利最优专利期限创新成功概率创新效率 Software Patent Optimal Patent Life Probability of Successful Innovation Innovation Efficiency

分类号 F416.672 [经济管理—产业经济] F204 [经济管理—国民经济]

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参考文献20

1潘士远.最优专利制度研究[J].经济研究,2005,40(12):113-118. 被引量：36
2Cohen, J. and M. Lemley, 2001, "Patent Scope and Innovation in the Software Industry", California Law Review, 89, pp 1-57.
3Comelli, F. and M. Schankerman, 1999, "Mark, Patent Renewals and R&D Incentives", RAND Journal of Economics, 30, pp. 197-213.
4Denicolo, 1996, "Patent Races and Optimal Patent Breadth and Length", Journal of Industrial Economics, 44, pp. 249-265.
5Gallini, N .T., 1992, "Patent Policy and Costly Imitation", RAND Journal of Economics, 23, pp. 52-63.
6Gilbert, R. and C. Shapiro, 1990, "Optimal Patent Length and Breadth", RAND Journal of Economics, 21, pp. 106-112.
7Green, J. and S. Scotchmer, 1995, "On the Division of Profit in Sequential Innovation", RAND Journal of Economlcs, 26, pp. 20-33.
8Karjala, D .S., 1998, "The Relative Roles of Patent and Copyright in the Protection of Computer Programs", John Marshall Journal of Computer and Information Law, 17, pp. 41-74.
9Klemperer, P., 1990, "How Broad Should the Scope of Patent Protection Be?" RAND Journal of Economics, 21, pp. 113-130.
10Maurer, S.M. and S. Scotchmer, 1998, "The Independent-Invention Defense in Intellectual Property", John M. Olin working paper 98-11, Boalt School of Law, University of California, Berkeley.

二级参考文献15

1Denicolo, Vincenzo, "Patent Races and Optimal Patent Breadth and Length", Journal of Industrial Economic, 1996, 44, pp. 249-265.
2Dixit, Avinash and Joseph E. Stiglitz, "Monopolistic Competition and Optimum Product Diversity", American Economic Review, 1977, 67,pp. 297-3O8.
3Gallini, Nancy T. , "Patent Policy and Costly Imitation", RAND Journal of Economics, 1992, 23, pp. 52-63.
4Gilbert, Richard and Carl Shapiro, "Optimal Patent Length and Breadth", RAND Journal of Ecortomics, 1990, 21, pp. 106-112.
5Goh, Ai-Ting and Jacques Oliver, "Optimal Patent Protection in a Two-Sector Economy", International Economic Review, 2002, 43, pp.1191-1214.
6Grossman, Gene M. and Elhanan Helpman, Innovation and Growth in the Global Economy, Cambridge, MA: MIT Press, 1991a.
7Hopenhayn, Hugo and Matthew F. Mitchell, "Innovation Variety and Patent Breadth", RAND Journal of Economics, 2001, 32, pp. 152-166.
8Judd, Kenneth L., "On the Performance of Patents", Econometrica, 1985, 53, pp. 567-585.
9Klemperer, Paul, "How Broad Should the Scope of Patent Protection Be?", RAND Journal of Economics, 1990, 21, pp. 113-130.
10Matutes, Carmen, Pieree Regibean and Katharine Rockett, "Optimal Patent Design and the Diffusion of Innovation", RAND Journal of Economics, 1996, 27, pp. 60-83.