【摘要】 借助于Ramsey-Cass-Koopmans增长模型,本文分析了当经济沿着最优动态路径增长时,宏观经济效率与人均资本的各种动态关系。实证结果显示:在短期,美国经济正运行在马鞍形稳定臂上,并会继续收敛于短期的均衡状态;中国经济效率与人均资本的值都比较低,而且从相图中的动力线来看,若短期内中国经济不能恢复到稳定臂上来,这一经济效率还有进一步恶化的趋势。在长期,美国的宏观经济效率表现出稳定上升的态势,而中国的宏观经济效率却表现出下滑的趋势,两者呈现典型的"剪刀型"特征。更多还原

【Abstract】 Using Ramsey-Cass-Koopman s model,this paper studies the dynamic relationship between the macroeconomic efficiency and the per capita capital when the economy grows along the dynamic optimum path.The research finding shows that the American economy,in the short term,is running at the stable arm of the saddle,and will converge in the equilibrium while China’s economic efficiency and per capita capital are relatively low in value.From the dynamic lines of the graphs,we can see that China’s economy cannot revert to the stable arm and may deteriorate further.In the long term,the efficiency of macroeconomics in the United States demonstrates a stable rising trend while the efficiency of China’s macroeconomics shows downward trend,and both display features of scissors.更多还原