Using information on time costs of training and gains in wages attributable to training I computed rates of return on training investments. The range of estimates based on several data sets generally exceeds the magnitudes of rates of return usually observed for schooling investments. It is not...

This study explores the existence of a net union premium and of the extent of rationing by quality of the resulting excess supply. The net union premium was estimated by relating changes in wages to changes in union status of the same worker in longitudinal panels (NLS and MID), and by two...