We conduct a field experiment designed to test theories of time-inconsistency, namely a "Beta-Delta" model of present bias. The experiment takes place in the context of a saving decision made by low-income tax filers who can deposit their income tax refund into an illiquid account. We find...

Over three-quarters of US taxpayers receive income tax refunds, indicating tax prepayments above the level of tax liability. This amounts to a zero interest loan to the government. Previous studies have suggested two main explanations for this behavior: precautionary behavior in light of tax...

We explore a key underlying assumption, the exclusion restriction, commonly used in interpreting IV estimates in the presence of heterogenous treatment effects as a local average treatment effect (LATE). We show through a series of simple examples that in some commonly featured cases that this...

We investigate the impact of the Social Security Annual Earnings Test (AET) on the employment decisions of older Americans. The AET reduces Social Security benefits by one dollar for every two dollars earned above the exempt amount. Using a differences-in-differences design, we find that the...

We estimate the elasticity of consumption with respect to income using an instrument based on firm-wide changes in pay. While much of the consumption-smoothing literature uses variation in unusual windfall income, this instrument captures the temporary income variation that households typically...

What are the effects of universal and permanent cash transfers on the labor market? Since 1982, all Alaskan residents have been entitled to a yearly cash dividend from the Alaska Permanent Fund. Using data from the Current Population Survey and a synthetic control method, we show that the...

Workplace wellness programs cover over 50 million workers and are intended to reduce medical spending, increase productivity, and improve well-being. Yet, limited evidence exists to support these claims. We designed and implemented a comprehensive workplace wellness program for a large employer...

We develop a method for estimating the effect of a kinked or notched budget set on workers' employment decisions, and we use it to estimate the impact of the Social Security Old-Age and Survivors Insurance (OASI) Annual Earnings Test (AET). The AET reduces OASI claimants' current OASI benefits...

Recent literature has documented that individuals face frictions in adjusting their earnings with respect to policy, but this literature has not yet developed a method for estimating earnings adjustment costs. We introduce a method for estimating the cost of adjusting earnings, as well as the...