for diseases with the greatest profitability and demand elasticity. Most empirical evidence regarding hospital competition … - ambulances usually take patients to the closest (or affiliated) hospital. In this paper, we derive a theoretically appropriate ….S. regional hospital markets to instrument for market concentration. We then estimate the model using risk-adjusted Medicare data …

compare hospital performance for emergency patients: plausibly exogenous variation in ambulance-company assignment. Ambulances … data from 2002-2008, we show that ambulance company assignment importantly affects hospital choice for patients in the same … zip code. Using data for New York state from 2000-2006 that matches exact patient addresses to hospital discharge records …

decompose the joint contribution of quality and unobserved productivity to hospital costs, relying on heterogeneous tastes among … the 75th percentile would increase costs at the average hospital by nearly fifty percent. Improvements in traditional … metrics of hospital quality such as risk-adjusted mortality are more modest, indicating that other factors such as amenities …

population. We find support for both sides of this debate. Markets experiencing entry by a cardiac specialty hospital have lower … spending for cardiac care without significantly worse clinical outcomes. In markets with a specialty hospital, however …

High and increasing hospital prices have led to calls for price regulation. If prices are high because of consolidation …'s predictions across numerous quality measures including patient satisfaction, hospital processes, risk adjusted mortality, the …

We estimate the effects of hospital competition on the level of and the variation in quality of care and hospital …

changes in hospital costs. I exploit an exogenous 1988 policy change that generated large price changes for 43 percent of all …