Are physicians rational under ambiguity?
通过激励相容的在线实验，评估医生在新冠疫情早期对疫情严重性和金融市场不确定性的态度，发现医生存在显著的非理性行为，尤其是概率不敏感，且与公众的非理性程度相似。
Abstract Do physicians behave rationally when facing a new disease? This study assesses physicians’ ambiguity attitudes towards the future severity of the COVID-19 pandemic in its early stages and the financial market in the US using an incentive-compatible online experiment. Our findings indicate that physicians demonstrate significant deviations from expected utility, characterized by a modest degree of ambiguity aversion and pronounced levels of likelihood insensitivity. While physicians generally show less insensitivity to uncertainty compared to the general public, both groups exhibited similar levels of irrationality when dealing with the ambiguity surrounding the COVID-19 severity. These results underscore the necessity for debiasing strategies among medical professionals, especially in managing real-world uncertainties, with a specific focus on mitigating likelihood insensitivity.