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2508.20053 2026-06-19 econ.TH 版本更新

Misperception and informativeness in statistical discrimination

统计歧视中的误解与信息量

Matteo Escudé, Paula Onuchic, Ludvig Sinander, Quitzé Valenzuela-Stookey

AI总结 研究劳动力市场统计歧视模型中信息与先验误解的相互作用,分解信息量增加对平均工资的影响为工具成分和感知修正成分,并分析其对工资差距的影响。

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AI中文摘要

我们研究了Phelps-Aigner-Cain型劳动力市场统计歧视模型中信息与先验(错误)感知的相互作用。我们将可观测信息关于工人技能的信息量增加对平均工资的影响分解为一个非负的工具成分(反映由于工人与任务更好匹配而增加的剩余)和一个感知修正成分(捕捉额外信息如何减少关于工人群体技能分布的先验误解的重要性)。我们确定了感知修正项的符号:如果群体在先验上被低估(高估),则该项为非负(非正)。然后,我们考虑了对于在信息、感知或两者上存在差异但技能相同的群体之间工资差距的含义,并确定了改善信息缩小工资差距的条件。

英文摘要

We study the interplay of information and prior (mis)perceptions in a Phelps-Aigner-Cain-type model of statistical discrimination in the labor market. We decompose the effect on average pay of an increase in how informative observables are about workers' skills into a non-negative instrumental component, reflecting increased surplus due to better matching of workers with tasks, and a perception-correcting component capturing how extra information diminishes the importance of prior misperceptions about the distribution of skills in the worker population. We sign the perception-correcting term: it is non-negative (non-positive) if the population was ex-ante under-perceived (over-perceived). We then consider the implications for pay gaps between equally-skilled populations that differ in information, perceptions, or both, and identify conditions under which improving information narrows pay gaps.