人口流动现象和城市化的影响因素——基于改进的乡—城人口流动模型的经济学分析

本文在托达罗乡—城人口流动模型的基础上,引入收入水平和城市生活成本这两个变量,将人口流动和城市化联系起来。人口流动是伴随着城市化进程的一个现象,不是城市化本身。所以,根据"民工荒"或者"民工潮"现象判断城市化水平是否适当是不科学的,农民收入水平和城市生活成本无疑是决定城市化水平的重要因素。"半城市化"作为统计数据意义上的城市化水平是脆弱的,因此,城市化的质量和内涵在下一阶段城市化推进中应该得到重视。

Based on the model of Todaro rural - urban migration, this paper introduces the variables of income level and urban living cost to connect population flow with urbanization. Population migration is a phenomenon accompanying urbanization, and is not urbanization itself. Therefore, it is not scientific to judge the urbanization level according to the phenomenon of ＂peasant workers shortage＂, and ＂rural labors tide＂ because the levels of peasants＇ income and the costs of urban living are undoubtedly the important factors determining urbanization level. ＂Semi - urbanization＂ as statistical data indicating urbanization level is weak. Thus, it is imperative to pay much attention to the quality and connotation of urbanization in next phase of urbanization promotion.