I21, J24, D83
i21, i23, c93, d83, o33
D63, D72, D91, J46, O15, R23, Z13
C93: Field Experiments, D23: Organizational Behavior, M12: Personnel Management and Executives, M53: Training
C93, J24, J64, J68, I26, J46
C93, D83, H41
I21, I28, C93, O33, O54
; Skills; Occupational Choice; Labor Productivity); O33 (Technological Change: Choices and Consequences
; Diffusion Processes); O15 (Human Resources; Human Development; Income Distribution; Migration)
C93; D73; I38
C93, J12, J16, J24, O15, Z12