Why does the binary system need to pay social security

The scholars of integrated urban-rural planning make a unified plan for urban-rural integration from a spatial point of view, i.e., a systematic arrangement of urban and rural material and spiritual elements with certain intrinsic associations.

Urban-rural dual economic structure

Generally refers to an economic structure in which the urban economy, which is mainly characterized by socialized production, and the rural economy, which is mainly characterized by small-scale production, coexist. The dual household registration system refers to the household registration system that divides agricultural and non-agricultural households in a legal sense.