劳动力的异质性与城乡劳动力转移

考虑到农村劳动力存在的人力资本质量阶梯和优质劳动力的先行转移，在不给出其他条件的情况下，刘-费-拉模型所预期的二元经济的一元化转变就不可能出现。改变前述局面的关键条件，是使农村部门的人力资本积累率大干其人力资本的转移率。为此。加大对农村地区的教育投入是现阶段农村发展政策的重点。     

A J–function for inhomogeneous point processes

We propose new summary statistics for intensity‐reweighted moment stationary point processes, that is, point processes with translation invariant n‐point correlation functions for all , that generalise the well known J‐, empty space, and spherical Palm contact distribution functions. We represent these statistics in terms of generating functionals and relate the inhomogeneous J‐function to the inhomogeneous reduced second moment function. Extensions to space time and marked point processes are briefly discussed.