The impact of Medicare shared savings program participation on hospital financial performance: An event-study analysis

To evaluate the impact of hospitals' participation in the Medicare Shared Savings Program (MSSP) on their financial performance. We used an event-study design to estimate the temporal effects of MSSP participation on hospital financial outcomes and compared within-hospital changes over time between MSSP and non-MSSP hospitals while controlling for hospital and year fixed effects and organizational and service-area characteristics.