"I use data from the Current Population Surveys and Employee Benefits Surveys to analyze employer-sponsored disability insurance coverage. There does not appear to be a systematic trend from 1980 to 2000 in the fraction of workers with coverage. Disability insurance coverage rates are lower than...

The Center for Medicare and Medicaid Services has introduced several pay-for-performance programs in the last few years to encourage hospitals to improve quality of care and reduce costs. Some state Medicaid programs have also introduced pay-for-performance for nursing homes. Long-term care...

Non-experimental evaluations of programs compare individuals who choose to participate in a program to individuals who do not. Such comparisons run the risk of conflating non-random selection into the program with its causal effects. By randomly assigning individuals to participate in the...