The role of information and social interactions in retirement plan decisions: Evidence from a randomized experiment
The role of information and social interactions in retirement plan decisions: Evidence from a randomized experiment
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DOI：
10.1162/00335530360698432
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发表时间：
2003-08-01
影响因子：
13.7
通讯作者：
Saez, E
中科院分区：
文献类型：
--
作者：
Duflo, E;Saez, E
本文分析了一个随机实验，揭示了信息和社会互动的作用，员工的决定参加一个大型大学内的递延纳税账户（TDA）退休计划。该实验鼓励随机抽取的一部分部门的员工参加由大学组织的福利信息博览会，并承诺对出席者给予金钱奖励。实验将这些接受治疗的人的出勤率（相对于对照组）增加了五倍以上，并将一些接受治疗的部门内未接受治疗的人的出勤率增加了两倍。公平后5个月和11个月的TDA入学率在一些人接受治疗的部门明显高于没有人接受治疗的部门。然而，对TDA注册的影响几乎是一样大的个人在治疗部门谁没有收到的鼓励，为那些谁。我们提供了三种解释-差别待遇效应，社会网络效应和激励奖励效应-来解释这些结果。
This paper analyzes a randomized experiment to shed light on the role of information and social interactions in employees' decisions to enroll in a Tax Deferred Account (TDA) retirement plan within a large university. The experiment encouraged a random sample of employees in a subset of departments to attend a benefits information fair organized by the university, by promising a monetary reward for attendance. The experiment multiplied by more than five the attendance rate of these treated individuals (relative to controls), and tripled that of untreated individuals within departments where some individuals were treated. TDA enrollment five and eleven months after the fair was significantly higher in departments where some individuals were treated than in departments where nobody was treated. However, the effect on TDA enrollment is almost as large for individuals in treated departments who did not receive the encouragement as for those who did. We provide three interpretations-differential treatment effects, social network effects, and motivational reward effects-to account for these results.