The implicit taxes from college financial aid
利用NPSAS助学金数据，估算大学助学金体系对收入和资产征收的隐性税率，发现中等价位大学边际收入税率为2%-16%，边际资产税率为8%-26%。
Families who earn more or who heed the “experts'” advice and save for college typically receive less financial aid. The financial aid system therefore implicitly taxes both income and assets. We use NPSAS aid award data to estimate these implicit taxes, and find that at average-priced colleges the marginal income tax ranges from 2 to 16% and the marginal asset levy from 8 to 26%. A typical family loses aid worth about $11 000 at average-priced colleges and $15 000 at expensive colleges by accumulating an extra $50 000 in assets.