Heterogeneous Human Capital, Occupational Choice, and Male-Female Earnings Differences
发现数学能力是大学生选择专业的重要决定因素，不同专业间的收入差异主要源于稀缺的定量能力在不同人力资本生产中的回报，模型成功解释了近期大学毕业生的性别收入与职业选择差异。
Human capital models have mainly focused on the rate of return to investment in a homogeneous stock of capital. Yet, individuals have different initial attributes that determine comparative advantage in producing different types of human capital. The authors find that mathematical ability is an important determinant of field choice for college students and that differences in earnings across fields are largely explained as a return to the use of scarce quantitative abilities in the production of each type of human capital. The model successfully accounts for the observed male-female differences in earnings and occupational choices of recent college graduates. Copyright 1990 by University of Chicago Press.