Optimal Paternalistic Savings Policies
We study optimal savings policies when there is a dual concern about under-saving for retirement and income inequality. Agents differ in time preferences and earnings ability, both unobservable to a planner with paternalistic and redistributive motives. We characterize the solution to this two-dimensional screening problem and provide a decentralization using realistic policy instruments: forced savings at low incomes — similar to Social Security — but a choice between savings accounts with different subsidies and caps at high incomes — like 401(k) and IRA accounts in the US.