This study examines the impact of the adoption of automatic enrollment provisions by the state of South Dakota for its supplemental retirement saving plan (SRP). In South Dakota, state and local government employees, including teachers, are covered by a defined benefit pension plan and by Social Security. Prior to the introduction of automatic enrollment, the proportion of newly hired employees who were contributing to the SRP was less than 5% in their first year of employment. After the introduction of automatic enrollment, over 90% of newly hired workers who were auto-enrolled were participating in the plan. Using a difference-in-difference approach we find that automatic enrollment changes differences in the participation rate by age, sex, and income. We also find that prior to the adoption of auto-enrollment, agencies that ultimately chose to implement this policy had higher participation rates compared to those that did not adopt auto-enrollment.

中文翻译：

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违约对参与州补充退休储蓄计划的影响

本研究探讨了南达科他州对其补充退休储蓄计划 (SRP) 采用自动注册条款的影响。在南达科他州，州和地方政府雇员，包括教师，都享受固定福利养老金计划和社会保障。在引入自动注册之前，新雇用的员工在入职第一年参与 SRP 的比例不到 5%。引入自动注册后，90%以上的自动注册新入职员工参与了该计划。使用差异中的差异方法，我们发现自动注册改变了年龄、性别和收入的参与率差异。我们还发现，在采用自动注册之前，