死亡风险信息、生存预期与性行为

中文摘要

我们考察一项关于人群层面死亡率的随机信息干预对健康投资与主观健康预期的影响。我们关注的是高 HIV 流行环境中的危险性行为。接受干预的个体在干预一年后从事危险性行为的可能性更低，例如，禁欲比例提高了 8%。我们收集了关于个体对自身生存与人群生存的主观预期以及其他重要健康结果的详细数据。我们的发现强调了将主观预期数据纳入实地实验以识别导致行为改变的路径的重要性。

Abstract

We investigate the impact of a randomised information intervention about population-level mortality on health investment and subjective health expectations. Our focus is on risky sex in a high-HIV-prevalence environment. Treated individuals are less likely to engage in risky sexual practices one year after the intervention, with, for example, an 8% increase in abstinence. We collected detailed data on individuals' subjective expectations about their own and population survival, as well as other important health outcomes. Our findings emphasise the significance of integrating subjective expectation data in field experiments to identify the pathways that lead to behavioural change.