C90 (Design of experiment – general), J16 (Economics of Gender), J21 (Labor Force and Employment
I12, I18, J16, O15
C93, I21, I22, I25, I28, O12
I25, I28, J24, L26, O15
G51, O12, O13
I24, J16, J24
I21 - Analysis of Education; J24 - Human Capital; Skills; Occupational Choice; Labor Productivity
D10, O12, D74
J24, M53, J48
E24, J23, J24, M40, O33, D83, C91