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The Returns to College(s): Relative Value-Added and Match Effects in Higher Education

Working Paper

Jack Mountjoy and Brent R. Hickman

September 2021

Students who attend different colleges in the U.S. end up with vastly different economic outcomes. The researchers study the role of relative value-added across colleges within student choice sets in producing these outcome disparities. Linking high school, college, and earnings registries spanning the state of Texas, they identify relative college value-added by comparing the outcomes of students who apply to and are admitted by the same set of institutions, as this approach strikingly balances observable student potential across college treatments and renders their extensive set of covariates irrelevant as controls. Methodologically, the authors develop a framework for identifying and interpreting value-added under varying assumptions about match effects and sorting gains. Empirically, they estimate a relatively tight, though non-degenerate, distribution of relative value-added across the wide diversity of Texas public universities. Selectivity poorly predicts value-added within student choice sets, with only a fleeting selectivity earnings premium fading to zero after a few years in the labor market. Non-peer college inputs like instructional spending more strongly predict value-added, especially conditional on selectivity. Colleges that boost BA completion, especially in STEM majors, also tend to boost earnings. Finally, they probe the potential for (mis)match effects by allowing value-added schedules to vary by student characteristics.