影子工资、影子收入与农户劳动供给——基于四川沐川县、安徽金寨县的调查分析

贫困地区就业的典型特征是自我雇佣，很少从事有酬劳动。如何在没有工资的情况下估计劳动供给行为就成为一个难题。在这种情况下，通过影子工资和影子收入来观察农户及其成员的劳动供给行为，为我们研究农户劳动力配置提供了一个有效的分析工具。本文利用Translog和C—D生产函数对四川省沐川县、安徽金寨县农户在林业、种植业、畜牧业和非农业的影子工资率进行估算，并利用Heckman两阶段模型分析了影子工资率等因素对农户劳动供给的影响，结果表明该地区农户的影子工资与劳动时间之间是负向关系，闲暇对于男性和女性来说是劣质品，家庭劳动供给的联合决策特征非常明显，家庭劳动力存在主次之分，该结论对于说明家庭内劳动分工以及劳动力流动有一定的指导意义。

Empirical Analysis of Shadow Wages and Labor Supply in Main Produation Areas of Forestry

Typical characteristics of farmers is self-employment in poor areas, and rarely engaged in paid working. It is a tough one to estimate labor supply behavior without wages. In this case, shadow wage and shadow income provide effective analysis tools to observe labor allocation of farmers and its members. This paper calculates the shadow wages of forestry, fanning, husbandry, non- farming of households in forestry main production areas according to C-D and Translog production function. The results of Heckman Two-step Model show that the relation of shadow wage and labour time is negative （means labour supply curve bends backward in C- shaped or S-shaped curve）, the relation of shadow income and labour time is positive （means that leisure is inferior goods）, the speciality of joint-decision in labor supply is obvious, there is the preliminary and secondary labour force in families, which explain the division of labour of family and labour flowing in a certain degree.