Hard Working Is More Important than Destiny

Weige Huang
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Abstract

This paper studies the intergenerational income mobility using XGBoost and SHAP. We show that child's educational attainment is more important than parents' income or other family characteristics for predicting child's income and it is still being the second most important variable after conditional on these characteristics. We also show that educational attainment can reduce the impacts of parents' income on child's income and has more impacts on income for non-white children. The findings imply that working hard to earn higher educational attainment can be more important than being born in a rich and white family (i.e., kind of destiny).
努力比命运更重要
本文利用XGBoost和SHAP对代际收入流动性进行了研究。我们表明,在预测孩子的收入方面,孩子的受教育程度比父母的收入或其他家庭特征更重要,而且它仍然是仅次于这些特征的第二大重要变量。我们还发现,受教育程度可以降低父母收入对孩子收入的影响,对非白人孩子的收入影响更大。研究结果表明,努力工作以获得更高的教育程度可能比出生在富裕的白人家庭(即某种命运)更重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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