U.S. physicians are increasingly joining multispecialty group practices. In this paper, we analyze how a primary care physician's practice type - single (SSP) versus multispecialty practice (MSP) - affects health care spending and use. Focusing on Medicare beneficiaries who change their primary...

This paper illustrates the impact of moral hazard for estimating relative rates of underinsurance and to present an adjustment method to correct for this source of bias. Individuals or households are often classified as underinsured if out-of-pocket spending on medical care relative to income...

We develop an empirical method to assess the generosity of employer-sponsored insurance across groups within the U.S. population. A key feature of this method is its simplicity - it only requires data on out-of-pocket (OOP) health care spending and total health care spending and does not require...