农业劳动力的异质性:乡城人口流动理论不应忽视的因素

在农业总劳动力仍然存在过剩情况下，劳动力的流出导致农业总产出水平下降是传统乡城人口流动理论的悖论。这一悖论的形成，是传统乡城人口流动理论忽视了农业劳动力异质性的结果。正是因为劳动力的异质性，导致在城市筛选过程中，农业优质劳动力的流出使农业劳动力整体素质降低，从而使农业总产出水平不断降低。这对城乡产生双重影响，特别是影响传统农业的改造。

A Factor Not to Be Ignored in the Theory of Population Flow from Country to Town

It is a paradox that, when the total agricultural laborers are in the state of excess, laborer flow has resulted in the continual reduction of agricultural total output in the conventional theory of population flow from country to town. The cause of this paradox is due to the fact that the traditional theory neglects the different qualities in the agricultural laborers. , owing to which, it is inevitable that (luring the city''s screening process, the flow of fine laborers has lowered the quality of the whole group and caused the total output of agriculture to drop continually. It has a dual effect on both town and country, esp. in the reform of conventional agriculture.