Wages for black and white workers are substantially lower in occupations with a high density of black employees, following standard controls. Such correlations can exist absent discrimination or as a result of discrimination. In wage level equations, the magnitude of the correlation falls...

The wages of part-time workers are considerably lower than are those of full-time workers. Measurable worker and job characteristics, including occupational skill requirements, account for much of the part-time penalty. Longitudinal analysis indicates that much of the remaining gap reflects...