The distribution of doctor quality: evidence from cardiologists in England

The distribution of doctor quality: evidence from cardiologists in England There is widespread and unexplained variation in the outcomes of similar patients across place and providers in all developed health systems. This paper provides new evidence on the role senior doctors play in determining patient outcomes. It exploits within-hospital quasi-random assignment of patients to senior doctors following a heart attack to estimate the effectiveness of individual doctors, and to estimate returns to experience for these doctors. Institute of Fiscal Studies