本文首先辨析了人口流动模型中的刘易斯模式和托达罗模式的关键分歧，即农业劳动者在城市的工资是如何决定的；
Firstly , the paper clarifies the key divergence between Lewis Model and Todaro Model in the field of population floating : how the wages of the peasants-workers in cities are determined .
刘易斯模式