A large literature treats take-up of commitment contracts, in the form of choice-set restrictions or penalties, as a smoking gun for time-inconsistency or self-control problems (for short, "present focus"). This paper develops techniques for inspecting this assumption, presents new...

We present findings from a field experiment conducted at 40 elementary schools involving 8,000 children and 400,000 child-day observations, which tested whether providing short-run incentives can create habit formation in children. Over a three or five week period, students received an incentive...

This paper examines the relationship between extreme socioeconomic disadvantage and poor health by providing the first detailed and accurate picture of mortality patterns among people experiencing homelessness in the U.S. Our analyses center on 140,000 people who were sheltered or unsheltered...

While state incarceration policies have received much attention in research on the causes of mass incarceration in the U.S., their roles in shaping population health and health disparities remain largely unknown. We examine the impacts of two signature state incarceration policies adopted during...