摘要
本文利用中国8省农村1420户的微观面板数据,检验了农户消费行为的三个理论假说。经验研究的主要发现包括:①整体上,中国农户消费行为能够很好的用PIH/LCH来描述,但是流动性约束对消费也有重要影响;②对于流动性约束组的农户来说,存在消费的过度敏感现象;而对于非流动约束组而言,则消费行为很好的遵循PIH假说;③根据固定效应模型的估计结果,流动性约束平均使得农户消费增长率提高1%-2%,农户相对避险系数为1.7—2.1左右;④本文尝试使用动态面板数据进行了IV估计,结果表明,收入的内生性可能会使得标准的固定效应模型产生对流动性约束对消费增长影响的高估。
Using a sample of 1420 households' panel data from rural area in China, this paper analyses three theoretical hypothesis about PIH/LCH. The main findings include that farmer's consumption is accordance with the PIH/LCH under liquidity constraint. For the constrained groups, there exists consumption excess smoothing on consumption path but not for the unbinding counterparts. The estimation excess growth under liquidity constraint is higher by 1% ~ 2% and the Arrow-Pratt coefficient of relative risk aversion is about 1.7 - 2.1. By using IV estimation to solve the income endogenous bias, it shows that the fixed effect model should over-estimate the effects of liquidity constraint.
出处
《统计研究》
CSSCI
北大核心
2008年第6期48-55,共8页
Statistical Research
基金
"国家社科基金项目‘微观视角的农村居民消费增长实证研究’(编号:07CJY037)"的阶段性成果