Hirsch, Barry T.; Schumacher, Edward J. - In: Journal of Labor Economics 22 (2004) 3, pp. 689-722
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...