Can governments increase private savings by taxing savings up front instead of in retirement? Roth 401(k) contributions are not tax-deductible in the contribution year, but withdrawals in retirement are untaxed. The more common before-tax 401(k) contribution is tax-deductible in the contribution...

Many Americans fail to get life-saving vaccines each year, and the availability of a vaccine for COVID-19 makes the challenge of encouraging vaccination more urgent than ever. We present a large field experiment (N=47,306) testing 19 nudges delivered to patients via text message and designed to...

Medium- and long-run dynamics undermine the effect of automatic enrollment and default savings-rate auto-escalation on retirement savings. Our analysis of nine 401(k) plans incorporates the facts that employees frequently leave firms (often before matching contributions from their employer have...

We track direct public interventions and public holdings in 1,114 financial institutions over the period 2007-17 in 37 countries based on publicly available information. We use aggregate official data to validate this new dataset and estimate the fiscal impact of interventions, including the...

The liquidity strains that contributed to the meltdown of the mortgage market in the Global Financial Crisis (GFC) re-emerged in the Coronavirus 2019 (COVID-19) Crisis. Some of these strains were acute. For example, the dependence of mortgage real estate investment trusts (REITs) on short-term...

Researchers have long hypothesized that exogenous changes to the supply of bank loans should affect economic activity. However, identifying such loan supply shocks is difficult, since loan supply and demand likely share many determinants. In this paper, we use the Federal Reserve's quarterly...