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一加一总是等于二吗?在拥有多个储蓄账户的同时为长寿风险投保

Is One Plus One Always Two? Insuring Longevity Risk While Having Multiple Savings Accounts
Management Science · 2025 · Abigail Hurwitz、Orly Sade

中文摘要

我们考察持有多个账户对退休时领取决策的影响。利用退休者年金化决策的专有数据,我们发现小额账户更可能被一次性提取。我们以职业信息作为财富的代理变量,以区分收入效应与多账户效应。我们表明,预期工资较高的个体总体上更倾向于年金化,但(相较于低工资个体)更不倾向于将其小额账户年金化。一项实验室实验和一项在线实验调查(样本量大且具有代表性)表明,多个账户的构成通过影响对小额账户与大型账户的决策来影响年金化率。

Abstract

We investigate the consequences of holding multiple accounts for payout decisions at retirement. Using proprietary data of retirees’ annuitization decisions, we find that small accounts are more likely to be cashed out. We use occupation information as a proxy for wealth to disentangle income from the multiple-accounts effect. We show that individuals with high expected wages are more likely to annuitize overall but less likely to annuitize their small accounts (comparing to individuals with low wages). A laboratory experiment and an online experimental survey (with a large representative sample) suggest that the composition of multiple accounts affects the annuitization rates via the decisions regarding small versus large accounts.
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