Has the Intergenerational Transmission of Economic Status Changed?
利用收入动态面板研究数据，估计儿子收入对父母收入弹性的趋势，发现1949-1953年出生组弹性上升，之后下降，解释了不同研究对流动性趋势的争议。
Abstract Only a few studies have tried to estimate the trend in the elasticity of children's economic status with respect to parents' economic status, and these studies produce conflicting results. In an attempt to reconcile these findings, we use the Panel Study of Income Dynamics to estimate the trend in the elasticity of son's income with respect to parental income. Our evidence suggests a nonlinear trend in which the elasticity increased for sons born between 1949 and 1953, and then declined for sons born after that. Thus depending on the time periods one compares, the trend could be upward, downward, or flat. This and other factors help explain the different estimates for the trend in mobility.