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美国历史上的代际流动:考虑种族与测量误差

Intergenerational Mobility in American History: Accounting for Race and Measurement Error
American Economic Review · 2023 · Zachary Ward

中文摘要

大量证据表明,过去150年间美国的相对流动性有所下降。然而,长期流动性估计通常基于白人样本,因此未能考虑非白人家庭所面临的有限机会。此外,历史数据对父亲地位的测量存在误差,这会使估计结果偏向更高的流动性。利用1850年至1940年的关联人口普查数据,本文表明,考虑种族和测量误差可使代际持续性的估计值翻倍。更新后的估计意味着,当今的机会平等程度高于过去,这主要是因为过去的机会从未真正平等。(JEL J15、J62、N31、N32)

Abstract

A large body of evidence finds that relative mobility in the US has declined over the past 150 years. However, long-run mobility estimates are usually based on White samples and therefore do not account for the limited opportunities available for nonwhite families. Moreover, historical data measure the father’s status with error, which biases estimates toward greater mobility. Using linked census data from 1850 to 1940, I show that accounting for race and measurement error can double estimates of intergenerational persistence. Updated estimates imply that there is greater equality of opportunity today than in the past, mostly because opportunity was never that equal. (JEL J15, J62, N31, N32)
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