Endogenous quality investments in the U.S. hospital market.

High and increasing hospital prices could reflect market imperfections, including provider concentration. Yet high prices could also reflect increased willingness to pay by privately insured consumers for clinical and non-clinical quality. In this paper, we explore strategic quality choices where hospitals make quality investments to increase private revenue.

How important is price variation between health insurers?

Prices negotiated between payers and providers affect a health insurance contract's value via enrollees' cost-sharing and self-insured employers' costs. However, price variation across payers is difficult to observe. We measure negotiated prices for hospital-payer pairs in Massachusetts and characterize price variation.

Civic capital and social distancing during the Covid-19 pandemic.

Using mobile phone and survey data, we show that during the early phases of COVID-19, voluntary social distancing was greater in areas with higher civic capital and amongst individuals exhibiting a higher sense of civic duty. This effect is robust to including controls for political ideology, income, age, education, and other local-level characteristics. This result is present for U.

Insurance access and demand response: Pricing and welfare implications.

We present a model in which health insurance allows liquidity-constrained patients access to otherwise unaffordable treatments. A monopolist's profit-maximizing price for an insured treatment is greater (for any cost sharing) than it would be if the treatment was not covered. Consumer surplus may also be less.

Just what the nurse practitioner ordered: Independent prescriptive authority and population mental health.

We examine whether relaxing occupational licensing to allow nurse practitioners (NPs)-registered nurses with advanced degrees-to prescribe medication without physician oversight improves population mental health. Exploiting time-series variation in independent prescriptive authority for NPs from 1990 to 2014, we find that broadening prescriptive authority leads to improvements in self-reported mental health and decreases in mental health-related mortality. These improvements are concentrated in areas that are underserved by physicians and among populations that have difficulty accessing physician-provided care.

Understanding recent trends in childhood obesity in the United States.

The prevalence of childhood obesity in the United States has more than tripled over the last four decades from 5 percent in 1978 to 18.5 percent in 2016. There is evidence for a break in trend in recent years: after growing from 0.

Thinking, Fast and Slow? Some Field Experiments to Reduce Crime and Dropout in Chicago.

We present the results of three large-scale randomized controlled trials (RCTs) carried out in Chicago, testing interventions to reduce crime and dropout by changing the decision making of economically disadvantaged youth. We study a program called Becoming a Man (BAM), developed by the nonprofit Youth Guidance, in two RCTs implemented in 2009-2010 and 2013-2015. In the two studies participation in the program reduced total arrests during the intervention period by 28-35%, reduced violent-crime arrests by 45-50%, improved school engagement, and in the first study where we have follow-up data, increased graduation rates by 12-19%.

Do report cards tell consumers anything they don't know already? The case of Medicare HMOs.

Estimated responses to report cards may reflect learning about quality that would have occurred in their absence ("market-based learning"). Using panel data on Medicare HMOs, we examine the relationship between enrollment and quality before and after report cards were mailed to 40 million Medicare beneficiaries in 1999 and 2000. We find consumers learn from both public report cards and market-based sources, with the latter having a larger impact.