The Role of Information in Disability Insurance Application: An Analysis of the Social Security Statement Phase-In
利用美国社会保障声明分阶段实施的自然实验，发现信息提供对残疾保险申请影响总体微弱，但在有工作限制人群中使申请率翻倍，且主要由先前不知情者驱动，说明信息摩擦在残疾政策中的重要性。
This paper exploits a natural experiment in information provision on US Disability Insurance (DI) applications: the Social Security statement. Although the effect of the statement on DI application was negligible in the general health and retirement study population, among those previously reporting a work limitation, biennial DI application rates approximately doubled. This effect was driven by previously uninformed individuals. Additional analyses show these were new applicants and were no less likely to be accepted onto DI, accounting for a substantial fraction of the rise in DI rolls from 1994 to 2004 and indicating the importance of informational frictions in disability policymaking.