The landscape of the U.S. healthcare industry is changing dramatically as healthcare providers expand both within and across markets. While federal antitrust agencies have mounted several challenges to same-market combinations, they have not challenged any non-horizontal affiliations - including...

The retail clinic is an innovation that has the potential to improve competition in health care markets. Given concern about inefficient use of the emergency room (ER) increasing health care costs, we use all ER visits in New Jersey from 2006-2014 to examine the impact of retail clinics on ER...

Improved health in low-income countries could considerably improve wellbeing and possibly promote economic growth. The last decade has seen a surge in field experiments designed to understand the barriers that households and governments face in investing in health and how these barriers can be...

We examine the impacts of physician-hospital integration on care fragmentation and other measures of care-coordination using a dynamic model of movers and stayers in commercially insured plans. Although recent growth in the share of practicing physicians belonging to these vertical organizations...

In markets for health services, vertical integration - common ownership of producers of complementary services - may have both pro- and anti-competitive effects. Despite this, no empirical research has examined the consequences of multispecialty physician practice - a common and increasing form...

We evaluate the consequences of narrow hospital networks in commercial health care markets. We develop a bargaining solution, Nash-in-Nash with Threat of Replacement, that captures insurers' incentives to exclude, and combine it with California data and estimates from Ho and Lee (2017) to...

In this study we examine the impact of a value-based insurance design (V-BID) program implemented between 2010 and 2013 at a large public employer in the state of Oregon. The program substantially increased cost-sharing, specifically copayments and coinsurance, for several healthcare services...

A central question in the debate over privatized Medicare is whether increased government payments to private Medicare Advantage (MA) plans generate lower premiums for consumers or higher profits for producers. Using difference-in-differences variation brought about by a sharp legislative...

The US health care sector is large and growing - health care spending in 2011 amounted to $2.7 trillion and 18% of GDP. Approximately half of health care output is allocated via markets. In this paper, we analyze the industrial organization literature on health care markets focusing on the...

Nurse practitioners (NPs) and physician assistants (PAs) now outnumber family practice doctors in the United States and are the principal providers of primary care to many communities. Recent growth of these professions has occurred amidst considerable cross-state variation in their regulation,...