This paper analyzes dynamic oligopoly models where investment is the principal strategic variable of interest, there are a large number of investment choices, and there are privately observed shocks to the marginal cost of investment. We show that simulation methods to compute these models can...

While economic theories indicate that market power by downstream firms can potentially counteract market power upstream, antitrust policy is opaque about whether to incorporate countervailing market power in merger analyses. We use detailed national claims data from the healthcare sector to...

This paper seeks to understand the impact of the Medicare Rural Hospital Flexibility (Flex) Program on hospital choice and consumer welfare for rural residents. The Flex Program created a new class of hospital, the Critical Access Hospital (CAH), which receives more generous Medicare...

When markets fail to provide socially optimal outcomes, governments often intervene through 'managed competition' where firms compete for per-consumer subsidies. Subsidies are generally set across geographies according to estimates of the cost of government provision, a method which may not be...

Regression discontinuity designs (RDDs) are a popular method to estimate treatment effects. However, RDDs may fail to yield consistent estimates if the forcing variable can be manipulated by the agent. In this paper, we examine one interesting set of economic models with such a feature....

We examine the relationship between physician preferences and both the intensity and cost of care delivered to commercially insured heart attack patients. We match survey data on physician preferences, collected by Cutler, Skinner, Stern, and Wennberg (2019) (CSSW), to medical claims data from...

Health information technology (IT) adoption, it is argued, will dramatically improve patient care. We study the impact of hospital IT adoption on patient outcomes focusing on the roles of technological and organizational complements in affecting IT's value and explore underlying mechanisms...

The US health care sector is, by most accounts, extraordinarily inefficient. Health information technology (IT) has been championed as a tool that can transform health care delivery. Recently, the federal government has taken an active role in promoting health IT diffusion. There is little...

A literature has found that medical providers inflate bills and report more conditions given financial incentives. We evaluate whether Medicare reimbursement incentives are driven more by bill inflation or coding costs. Medicare reformed its payment mechanism for inpatient hospitalizations in...

The U.S. Environmental Protection Agency uses a dynamic approach to environmental enforcement for air pollution, with repeat offenders subject to high fines and designation as high priority violators (HPV). We estimate the benefits of dynamic monitoring and enforcement by developing and...