False alarm? Estimating the marginal value of health signals
研究体检后健康信号的边际价值，发现对普通人群的健康警告增加医疗使用但未改善健康，而对高风险人群则改善健康且物有所值。
We investigate the marginal value of information in the context of health signals that people receive after checkups. Although underlying health status is similar for individuals just below and above a clinical threshold, treatments differ according to the checkup signals they receive. For the general population, whereas health warnings about diabetes increase healthcare utilization, health outcomes do not improve. However, among high-risk individuals, outcomes do improve, and improved health is worth its cost. These results indicate that the marginal value of health information depends on setting appropriate thresholds for health warnings and targeting individuals most likely to benefit from follow-up medical care.