中文摘要：

发展中国家推动技术进步的形式可以同时容纳向外模仿与自主研发，基于此种典型化事实，我们发展了自利企业即可模仿引进又可自主研发的经济增长模型，并从技术进步的视角上，解释了后发国家经济实现赶超或者陷入模仿陷阱而停滞的可能性并存的增长事实，丰富了现有经济增长理论关于赶超的解释。围绕模仿陷阱的概念，我们详细论述了发展中国家欲实现经济赶超的路线图，以及中国新时期所提的收入倍增战略的阶段最优性。

英文摘要：

Under non-competitive market framework, we make an endogenous growth model in which self-interest entre- prenures can either imitate or research independently, and it is ture for the developing countries in promoting technical progress. Based on our new theory, the facts of economic growth that some countries reaching catching up, others falling into the trap and stagnating, can be explained. Imitation trap is one of the core concepts presented in this paper. A- round the imitation trap, we have discussed the detail about how the developing countries catch up, how they beyond the imitation trap by what policy options, and Doubleincome policy is optimal to China nowadays.