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Quantile Regression

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Journal of Economic Perspectives—Volume 15, Number 4 —Fall 2001—Pages 143–156 Quantile Regression Roger Koenker and Kevin F. Hallock e say that a student scores at the ␶th quantile of a standardized exam if W he performs better than the proportion ␶ of the reference group of students and worse than the proportion (1–␶). Thus, half of students perform better than the median student and half perform worse. Similarly, the quartiles divide the population into four segments with equal proportions of the reference population in each segment. The…

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