城镇居民不同收入水平的边际消费倾向与弹性比较分析

从协整分析的角度,研究了中国1992-2011年间城镇居民不同收入水平的消费收入函数、消费收入弹性函数以及误差修正模型。消费收入函数表明,中低收入居民的边际消费倾向较大,低收入居民的消费意愿较高收入阶层更为强烈。消费收入弹性函数表明,所有不同收入水平居民的消费收入弹性都小于1,都是低弹性,且缺乏弹性,说明中国城镇居民的消费很谨慎。误差修正模型表明收入在居民消费中起着关键性的作用,发挥了消费收入协整关系的引力线作用,能将非均衡状态拉回到均衡状态。

Marginal propensity to consume (MPC) and comparative analysis of flexibility of Chinese urban residents with different income levels

From the perspective of co-integration analysis,this paper studies the consumption and income function,its error correction model as well as consumption and income elasticity function of urban residents with different income levels from 1992 to 2011.The consumption and income function shows that the marginal propensity to consume of the residents with middle and low income tends to be larger and the residents with low income are more willing to consume than the residents with high income.The consumption and income elasticity function shows that the income elasticity of all residents with different income levels is less than 1,which is low and lack of flexibility,indicating that urban residents＇ attitude to consumption is very cautious in China.The error correction model shows that income plays a key role in the residents＇ consumption,which functions as the gravitational line in co-integration relation which can pull a non-equilibrium state back to a equilibrium state.