How Do Income-Driven Repayment Plans Benefit Student Debt Borrowers?
Using credit bureau data, we show that nearly half the increase in student debt since 2010 is due to deferred payments and the expansion of income-driven repayment (IDR) plans. These plans help borrowers smooth consumption, insure income risk, and reduce the effective debt cost. Using a life-cycle model, we quantify the welfare gains from this payment deferment and the channels through which welfare increases. New, more generous rules further subsidize borrowers without yielding net welfare gains. We show that an optimally calibrated plan can achieve similar welfare gains at a much lower cost to taxpayers, and without encouraging additional borrowing.
More from NBER
In addition to working papers, the NBER disseminates affiliates’ latest findings through a range of free periodicals — the NBER Reporter, the NBER Digest, the Bulletin on Retirement and Disability, the Bulletin on Health, and the Bulletin on Entrepreneurship — as well as online conference reports, video lectures, and interviews.
