Match bias in wage gap estimates due to earnings imputation
Match bias in wage gap estimates due to earnings imputation
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DOI：
10.1086/383112
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发表时间：
2004-07-01
影响因子：
3.8
通讯作者：
Schumacher, EJ
中科院分区：
文献类型：
--
作者：
Hirsch, BT;Schumacher, EJ
在当前人口调查中，约30%的工人有收入估算。当被研究的属性（例如，工会地位）不是用于匹配捐赠者和非受访者的标准时，工资差距估计偏向于零。导出了“匹配偏差”的表达式，其中衰减等于匹配错误率的总和。衰减可以用估算收益的比例来近似表示。去掉匹配偏差后的工会工资差距估计是1973-2001年的。近年来的估计向下倾斜了5个百分点。对与其他不匹配标准（公共部门、工业等）相结合的差距估计的偏差进行了检查。
About 30% of workers in the Current Population Survey have earnings imputed. Wage gap estimates are biased toward zero when the attribute being studied (e. g., union status) is not a criterion used to match donors to nonrespondents. An expression for "match bias" is derived in which attenuation equals the sum of match error rates. Attenuation can be approximated by the proportion with imputed earnings. Union wage gap estimates with match bias removed are presented for 1973-2001. Estimates for recent years are biased downward 5 percentage points. Bias in gap estimates accompanying other non-match criteria ( public sector, industry, etc.) is examined.