Exploiting geological variation within shale deposits and timing in the initiation of hydraulic fracturing, this paper finds that allowing fracing leads to sharp increases in oil and gas recovery and improvements in a wide set of economic indicators. At the same time, estimated...

That prenatal events can have life-long consequences is now well established. Nevertheless, research on the Fetal Origins Hypothesis is flourishing and has expanded to include the early childhood (postnatal) environment. Why does this literature have a “second act?” We summarize the major...

Using national data on opioid prescriptions written by physicians from 2006 to 2014, we uncover a striking relationship between opioid prescribing and medical school rank. Even within the same specialty and practice location, physicians who completed their initial training at top medical schools...

Mortality is a crucial indicator of wellbeing and recent mortality trends have been a subject of public debate in many Western countries. This paper compares mortality inequality in Canada and the U.S. over the period 1990/91 through 2010/11. In Canada, mortality inequality remained constant...

Using a unique dataset linking preschool blood lead levels (BLLs), birth, school, and detention data for 120,000 children born 1990-2004 in Rhode Island, we estimate the impact of lead on behavior: school suspensions and juvenile detention. We develop two instrumental variables approaches to...

Treatment for depression is complex, requiring decisions that may involve tradeoffs between exploiting treatments with the highest expected value or experimenting with treatments with higher possible payoffs. Using patient claims data, we show that among skilled doctors, using a broader...

We study the effects of prenatal exposure to violent crime on infant health, using New York City crime records linked to mothers' addresses in birth records data. We address endogeneity of assault exposure with three strategies and find that in utero assault exposure significantly increases the...

Large literatures document positive effects of WIC on birth outcomes, and separately connect health at birth and future outcomes. But little research investigates the link between prenatal WIC participation and childhood outcomes. We explore this question using a unique data set from South...

We develop a method to compare levels and trends in inequality in mortality in the United States and France in a similar framework. The comparison shows that while income inequality has increased in both the United States and France, inequality in mortality in France remained remarkably low and...

Many observers have blamed HMOs for increasing financial pressures on private hospitals and causing them to cut back on the provision of charity care. We examine this issue using data on all hospital discharges in California between 1988 and 1996. We find that public hospitals in counties with...