发展中国家知识产权保护对经济增长的影响

How Intellectual Property Protection Influences Economic Growth in Developing Countries

在南北分析框架基础上引入东西格局概念,改进水平创新技术扩散模型。无论是增强还是减弱知识产权保护强度,南方国家的东部地区和西部地区都陷入创新与模仿的两难困境。若南方国家东部地区和西部地区存在明显技术差距,那选择加强或减弱知识产权保护来实现南方国家技术进步是有条件的,该临界条件由南北国家技术差距、东西部地区技术差距等因素决定。加强知识产权保护有利于北方国家的经济增长率的增加,而加强知识产权保护对南方国家经济增长率的有利影响是有条件的,该临界条件同样是南北国家技术差距、东西部地区技术差距的复杂函数。

By introducing the east - west pattern into north - south framework, this paper improves the expanding- variety -type R＆D -based innovation diffusion model. This new model shows that either enhancing or weakening the strength of intellectual property protection （IPP） causes the east and west regions in the countries in the South fall into the dilemma of innovation and imitation. If significant technology gap exists between east and west in those countries, then it is conditional for them to accelerate technological progress only by the policy of either strengthening or weakening IPP, and the critical condition depends on the technology gap between North and South, the technology gap between the east and the west and some other factors. North economic growth always benefits from strengthening IPP in South, but for South, strengthening IPP has beneficial effect on economic growth only if it satisfies a critical condition, which is complex function of the same technology gaps between North and South, and East and West.