Earnings Test, Non-actuarial Adjustments and Flexible Retirement
Axel Borsch-Supan, Klaus Hartl, Duarte N. Leite
Economics Letters, vol. 173, 2018, p. 78-83.

Who Cares about the Day after Tomorrow? Pension Issues When Households Are Myopic or Time Inconsistent
Axel Borsch-Supan, Klaus Hartl, Duarte N. Leite
Review of Development Economics, vol. 22, 2018, p. 953-989.