The economic structure of two systems of western development economics thinks only aftr the surplus labours of the agricultural sectors hsa already been absorbed by the industrial department, the wages level of the agri cultural sectors could be improced.

• 西方发展经济学的二元经济结构理论认为：只有当农业部门的剩余劳动已全部由工业部门吸收之后，农业部门的工资水平才能提高。