Workforce Composition and Earnings Inequality
构建了一个同时纳入教育、经验和行业选择等多因素的模型，发现美国劳动力构成的变动是收入差距扩大的重要直接原因。
A presentation of a model that incorporates many factors simultaneously -- including education, experience, and industry choice -- to explain the growing disparity in Americans earnings. Its main finding is that the shifting composition of the U.S. workforce is a significant and direct determinant of the widening earnings gap.