Do professional norms in the medical industry favor outcome bias?

This study tests the effect of doctors' professional identity on their outcome bias. We conduct a medical experiment with 264 doctors, a robustness test with 105 doctors, and a public experiment with 170 non‐doctors. The experimental results show that doctors, but not non‐doctors, exhibit more outcome bias when we exogenously render their professional identity more salient. These results indicate that professional norms in the medical industry favor outcome bias.