Higher Education Policies and Spatial Inequality Across US States with Sang Min Lee
[Presented: SED Winter 2024, Scheduled: Urban Econ Association, USC, U Monash, LAEF-NYU]
To what extent have the federal and state higher education policies—which have affected the supply and demand of college education—contributed to the growing cross-state wage inequality since 1980? To address this question, we develop and estimate a quantitative spatial model with endogenous college education and migration. The model features skill-biased technical changes and agglomeration effects, which means that a state’s average wage rises as more residents attain college degrees or as college-educated workers migrate into the state. Counterfactual analyses reveal that tuition discounts and public appropriations by the federal and state governments have become more progressive. In the baseline, the standard deviation of log mean wages across states increased from 0.087 in 1980 to 0.117 in 2019. In contrast, had the higher education policies remained at their 1980 levels, the standard deviation would have risen by 73% more to 0.139 by 2019. Agglomeration effects played a significant role in this result: if they had been half as strong as estimated, the standard deviation would have increased by 17% more (instead of 73%) in the counterfactual than in the baseline.