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失业风险对个人储蓄的重要性

The Importance of Unemployment Risk for Individual Savings
Management Science · 2025 · Ragnar Juelsrud、Ella Getz Wold

中文摘要

本文利用一个新颖的自然实验和挪威税收数据,量化了失业风险对个人储蓄的因果影响。通过比较生活在同一地区但面临不同风险增加的个体,我们发现失业率每增加一个百分点,安全资产就会增加1.3%。令人欣慰的是,这种效应是由任期较短的工人驱动的,他们面临的风险增加最大。风险金融资产的储蓄未受影响,这意味着个人投资组合中整体风险份额的下降。我们使用两种独立的方法,分别依赖于横截面变化或时间序列变化,来量化失业风险在解释经济衰退期间储蓄增加中的重要性。我们的结果表明,失业风险可以解释经济衰退导致的安全资产增加的60%至80%。

Abstract

In this paper, we use a novel natural experiment and Norwegian tax data to quantify the causal impact of unemployment risk on individual savings. By comparing individuals who live in the same area but face different increases in risk, we show that a one-percentage-point increase in unemployment rates increases safe assets by 1.3%. Reassuringly, this effect is driven by low-tenured workers, who face the highest increase in risk. Savings in risky financial assets remain unaffected, implying a decrease in the overall risky share of individual portfolios. We use two independent approaches, relying either on cross-sectional variation or time series variation, to quantify the importance of job loss risk in accounting for higher savings during recessions. Our results suggest that unemployment risk can explain 60%–80% of the recession-induced increase in safe assets.
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