Does student aid increase college attendance or simply subsidize costs for infra-marginal students? Settling the question empirically is a challenge, because aid is correlated with many characteristics that influence educational investment decisions. A shift in financial aid policy that affects...

Increasing the postsecondary attainment rate of college-age youth is an important economic priority in the U.S. and in other developed countries. Yet little is known about whether different forms of public subsidy can increase degree completion. In this paper, we compare the impact of the...