技术扩散模型中的发展中国家最优专利保护

本文在Barro and Sala-I-Martin(1997)的技术扩散模型基础上,构建了一个Ramsey问题模型讨论发展中国家内生的动态最优专利保护问题。本文给出了Ramsey问题的均衡解并讨论了其动态特征,克服了现有文献只用比较静态方式分析讨论外生最优专利保护政策的缺陷。本文的主要结论是,发展中国家在发展早期阶段,理应设定相对较低的专利保护程度,然后随着经济成长不断地提高专利保护水平,但其长期的稳态专利保护水平有可能比发达国家高,也可能比发达国家低。

On the Optimal Patent Protection of Developing Countries in A Technological Diffusion Model

This paper studies the optimal patent protection of developing countries with a model based on the technological diffusion model of Barro and Sala-I-Martin (1997).In the model,a benevolent government takes competitive equilibriums as granted and chooses the optimal patent policy to maximize the social welfare.We characterize the steady-state as well as dynamic equilibrium solutions to the Ramsey problem.We find that it is reasonable for a developing country to adopt low level of patent protection in its ear...