Reducing Income Inequality in Educational Attainment: Experimental Evidence on the Impact of Financial Aid on College Completion (2016)

Income inequality in educational attainment is a long-standing concern,
and disparities in college completion have grown over time.
Need-based financial aid is commonly used to promote equality in
college outcomes, but its effectiveness has not been established, and
some are calling it into question. A randomized experiment is used to
estimate the impact of a private need-based grant program on college
persistence and degree completion among students from low-income
families attending 13 public universities across Wisconsin. Results indicate
that offering students additional grant aid increases the odds of
bachelor’s degree attainment over four years, helping to diminish income
inequality in higher education.

Experimental Evidence on the Impacts of Need-Based Financial Aid: Longitudinal Assessment of the Wisconsin Scholars Grant (2020)

We conduct the first long-term experimental evaluation of a need-based financial aid program, the privately funded Wisconsin Scholars Grant. Over multiple cohorts, the program failed to increase degree completion and graduate school enrollment up to 10 years after matriculation. The program did reduce time-to-degree for some students and modestly increased the number of STEM degrees earned. The lack of robust effects raises important questions about the conditions necessary for financial aid to benefit students.