Prior research suggests that statewide affirmative action bans reduce minority enrollment at selective colleges while leaving the overall college enrollment of minorities unchanged. However, the effect of these bans on across-college racial segregation has not yet been estimated. This effect is theoretically ambiguous because of a U-shaped relationship across colleges between minority enrollment and college selectivity. This paper uses variation in the timing of affirmative action bans across states to estimate their effects on racial segregation as measured by standard exposure and dissimilarity indexes, finding that affirmative action bans increased segregation across colleges in some cases but reduced it in others. In particular, early affirmative action bans in states with highly selective public universities appear to be associated with less segregation, whereas more recent affirmative action bans appear to be associated with more segregation.

中文翻译：

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平权行动与种族隔离

先前的研究表明，全州的平权行动禁令减少了部分大学的少数族裔入学率，而少数族裔的整体大学入学率则保持不变。但是，尚未评估这些禁令对全校种族隔离的影响。从理论上讲，这种影响是模棱两可的，因为各大学之间的少数民族招生与大学选择性之间呈U型关系。本文使用州之间平权行动禁止时间的变化来评估其对种族隔离的影响，通过标准暴露和异类指数来衡量，发现平权行动禁止在某些情况下增加大学之间的种族隔离，而在某些情况下则减少了隔离。特别是，