Biases in Twin Estimates of the Return to Schooling: A Note on Recent Research
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Ashenfelter and Krueger's (1993) within-twin, measurement-error- corrected estimate of the return to schooling is about 13-16 percent. If their estimate is unbiased, then their results imply considerable downward measurement error bias in uncorrected within-twin estimates of the return to schooling,
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美国国家经济研究局创建时间：
1994-06-01
