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反思福利国家

Rethinking the Welfare State
Econometrica · 2023 · Nezih Guner、Remzi Kaygusuz、Gustavo Ventura

中文摘要

美国通过一系列支持中低收入家庭的广泛项目,为其劳动年龄人口在非医疗转移支付上花费了巨额资金。这些项目对美国住户的价值有多大?是否存在更简单、能改善福利且获得多数人支持的资源转移方式?此类替代方案会产生怎样的宏观经济效应?我们在一个均衡生命周期模型中回答这些问题,该模型包含单身和已婚住户,他们面临特质性生产率风险,且存在抚养子女成本以及女性因不参与劳动而可能产生的技能损失。我们的研究结果表明,若收入中性地取消福利国家,总体上将产生巨大的福利损失,尽管多数住户支持此举,因为损失集中在少数群体中。我们发现,普遍基本收入项目并未改进现行制度。而如果改为在实行比例税的同时实施人均转移支付(即负所得税实验),则改进现行制度是可行的。向所有住户提供人均转移支付代价高昂,而减少税收扭曲有助于为扩大再分配提供资源。

Abstract

The United States spends significant amounts on non‐medical transfers for its working‐age population in a wide range of programs that support low‐ and middle‐income households. How valuable are these programs for U.S. households? Are there simpler, welfare‐improving ways to transfer resources that are supported by a majority? What are the macroeconomic effects of such alternatives? We answer these questions in an equilibrium, life‐cycle model with single and married households who face idiosyncratic productivity risk, in the presence of costly children and potential skill losses of females associated with non‐participation. Our findings show that a potential revenue‐neutral elimination of the welfare state generates large welfare losses in the aggregate, although most households support the move as losses are concentrated among a small group. We find that a Universal Basic Income program does not improve upon the current system. If, instead, per‐person transfers are implemented alongside a proportional tax, a Negative Income Tax experiment, it becomes feasible to improve upon the current system. Providing per‐person transfers to all households is costly, and reducing tax distortions helps to provide for resources to expand redistribution.
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