Physicians Treating Physicians: Relational and Informational Advantages in Treatment and Survival
研究医生患者与非医生患者在晚期癌症治疗中的差异，发现医生患者更少接受手术和放疗，更多接受靶向治疗，生存率更高，且知识机制比网络效应更重要。
We use the medical specialties of physician-patients with advanced cancer to study the role of knowledge versus networks in treatment choices and patient survival by matching comparable patients with doctors and admission periods to control unobserved doctor quality. Physician-patients are less likely to have surgery, radiation, or checkups and more likely to receive targeted therapy, spend more on drugs, enjoy a higher survival rate, and spend less on coinsurance than nonphysician-patients. Knowledge mechanisms play a crucial role because the network effect explains some, but not all, patterns. For less informed physician-patients, possessing a network is equivalent to reducing medical knowledge.