Does Promoting One Healthy Behavior Detract from Others? Evidence from a Field Experiment
通过大型田野实验，研究促进冥想和记录饮食两种健康行为的干预措施是否会对其他健康行为产生负面溢出效应，发现干预使对方行为完成率降低19-29%。
Impact evaluations of behavioral interventions typically focus on target outcomes. Might interventions induce negative spillovers on other behaviors? I run a large field experiment in which individuals receive combinations of messages and incentives promoting two healthy behaviors, meditation and meal logging. I find that the interventions reduce completion rates of the opposite behavior by 19–29 percent. I find that interventions with larger target effects do not necessarily generate larger negative spillovers, and demonstrate implications for cost-effectiveness analysis. I investigate the mechanisms behind the observed spillovers.