Quantitative Models of Wealth Inequality: A Survey
Quantitative Models of Wealth Inequality: A Survey
复制标题
财富不平等的定量模型：一项调查
DOI：
--
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
M. Nardi
中科院分区：
文献类型：
--
作者：
M. Nardi
虽然从数据来看，财富集中在少数富人手中，富人的储蓄率很高，但许多用于量化政策评估的模型却无法符合这一事实。此外，一些成功匹配这些事实的模型具有截然不同的政策含义，具体取决于所假设的储蓄动机的性质和强度。本文调查了迄今为止提出的储蓄机制（偏好异质性、遗产和人力资本的代际传递、创业精神以及高收入者的高收入风险），并认为需要做更多的工作来理解财富不平等及其背后的储蓄动机，并更可靠地评估政策。
While in the data wealth is concentrated in the hands of a small number of rich people and the saving rate of the rich is high, many models used for quantitative policy evaluation fail to match these facts. In addition, some of the models that succeed in matching these facts have radically different policy implications, depending on the nature and strength of the saving motives assumed. This paper surveys the savings mechanisms proposed so far (preference heterogeneity, transmission of bequests and human capital across generations, entrepreneurship, and high earnings risk for the top earners) and argues that more work is needed to understand wealth inequality and the saving motives behind it, and to evaluate policy more reliably.