hospital competition was associated with lower mortality in California and New York, but not Wisconsin. In addition, higher HMO …This study assessed the effect of hospital competition and HMO penetration on mortality after hospitalization for six … medical conditions in California, New York, and Wisconsin. We used linked hospital discharge and vital statistics data to …

infarction (reported by the state of California). Measures of competition are constructed for each hospital and payer type. The … of competition for HMO patients decrease risk-adjusted hospital mortality rates. Conversely, increases in competition for …. Increasing competition has little net effect on hospital quality for our sample …

connection between selection and moral hazard in star hospital use …

investigates the causes and welfare effects of the observed hospital networks. A simple profit maximization model explains roughly …

significant weight on their expected utility from the hospital network when choosing plans. A welfare analysis, assuming fixed …

form of insurance in the private sector. Also, a wave of hospital consolidation occurred. In 1990, the mean population …-weighted hospital Herfindahl-Hirschman Index (HHI) in a Health Services Area (HSA) was .19. By 2000, the HHI had risen to .26. This … paper explores whether the rise in managed care caused the increase in hospital concentration. We use an instrumental …