G30, G34, J16, J21, J23
C93, Q12, J21, D91, J24, J64,
B54; C9; J16; J21
C90 (Design of experiment – general), J16 (Economics of Gender), J21 (Labor Force and Employment
J21, J33
J15, J21, J71
J24, J21, J16, I24
J24, J21, J16, I24
J01, J21, J24
J21, L71, Q43