This research uses the input-oriented Data Envelopment Analysis (DEA) approach to examine the efficiency of the U.S. health insurers. It shows that more insurers are less efficient than the previous sample year; however, the results suggest that the federal health care reform have no significant...

Medicare Accountable Care Organizations (ACOs) represent the nation’s largest initiative of Medicare alternative payment models toward value and health outcomes. The Centers for Medicare & Medicaid Services (CMS) have tested various ACO models with differential risk structures, and have issued...