Higher-Education Policies and the College Wage Premium: Cross-State Evidence from the 1990s
利用美国各州差异，发现高等教育政策与过去入学率及近期大学工资溢价变化紧密相关，但在高私立入学率、高州际流动或贸易的州中关系较弱。
Exploiting differences across U.S. states, this paper demonstrates that there is a tight link between higher education policies, past enrollment rates, and recent changes in the college wage premium among labor market entrants. The analysis reveals, however, that this relationship is much weaker in states with high private enrollment rates, high levels of interstate mobility, or interstate trade. The within-state estimates of the own-cohort relative supply effect shed some light on the extent to which the U.S. labor market can be characterized as a single national market or a collection of state-specific labor markets.