Dynamics of Wage Structure and of Human Capital Formation

这项研究的目的是为了更好地了解人力资本形成和工资结构变化的相互关联的动态。在过去的二十年里，美国的工资不平等一直在加剧。这个项目的问题是，不平等是否会继续加剧，或者增加教育和职业培训是否会将回报降低到更长期的水平。该项目由三项经验性任务组成：(1)检测和评估以入学人数衡量的中学后教育投资和以工资技能差异衡量的人力资本回报率变化对职业培训的反应。(2)估计以教育程度衡量的人力资本积累对技能工资差异的影响。(3)入学反应与成就效应之间存在滞后性，需要进行统计估计。计量经济学分析将利用当前人口调查、国家纵向调查和国家教育统计中心的微观数据，以及劳动统计局和教育考试局的专门调查。

The purpose of this research is to gain a better understanding of the interrelated dynamics of human capital formation and changes in the wage structure. Wage inequality in the U.S. has been rising for the past twenty years. This project asks whether inequality will continue to rise or whether increased education and job training will reduce the returns to a more long-run levels. The project consists of three empirical tasks: (1) Detecting and estimating responses of investments in post-secondary education, measured by enrollments, and in job training to changes in rates of return to human capital as measured by skill differentials in wages. (2) Estimating the effects of the accumulation human capital measured by educational attainment on skill wage differentials. (3) Enrollment responses and attainment effects are separated by a lag to be estimated statistically. The econometric analysis will utilize micro-data from the Current Population Survey, the National Longitudinal Survey, and the National Center for Education Statistics, as well as special surveys of the Bureau of Labor Statistics and the Educational Testing Service.