技术赶超中的模仿陷阱与跨越问题研究

摘要

Based on a three -sector endogenous growth model given by Romer,the author introduces imitation and innova-tion in proper order to R&D sector and then constructs a technological catch -up model of lagging economies.By the mod-el,this paper analyzes economic run -path in the process of technological catch -up of lagging economies.It suggests that the changes of value of intermediate goods production enterprise and the number of types of intermediate goods interact to form a power system which gives impetus to technological catch -up running along a certain path.In the economic run -path,generally,there are two whirlpool equilibrium point which is called imitation and innovation equilibrium point.Lag-ging economies need to step over the imitation equilibrium point.It is difficult to break through if economic system fall into imitation trap..%通过扩展罗默三部门内生增长模型，依次将模仿与自主创新两种技术进步的方式引入研发部门建立一个后发经济体技术赶超模型。运用该模型对后发经济体技术赶超中的经济运行路径进行分析，结果发现中间品生产企业的价值变化与中间品种类数的变动之间的相互作用所构成的动力系统推动着后发经济体的技术进步沿着一定的路径运行。该路径会经历模仿与创新两个漩涡式的均衡点，赶超经济体想实现赶超就要跨越模仿均衡达到创新均衡。