Financial incentives have been shown to have strong positive short‐run effects for problematic health behaviors, but the effects often disappear once incentive programs end. This paper analyzes the results of a large‐scale workplace field experiment to examine whether self‐funded...

Using data from a field experiment on exercise, we analyze the relationship between imperfect memory and people's awareness of their limited self-control. We find that people overestimate past gym attendance, and that larger overestimation of past attendance is associated with (i) more...

Spending induced by health insurance is often called moral hazard and definitionally assumed to be inefficient. We adapt standard models and show that for those living "hand-to-mouth", the financing benefits of insurance cause a portion of moral hazard to be efficient. Although insurance's price...

Analyzing data spanning three decades covering the near universe of births, we study county-level differences in Cesarean section (C-section) rates among first-time mothers of singleton births. Our research reveals persistent geographic variation in C- section rates for both low- and high-risk...