C90 (Design of experiment – general), J16 (Economics of Gender), J21 (Labor Force and Employment
C90, D11
C90, D90, G40, G34, G10, J16
J08, J64, C90
A13, C90, J20, J24
C90, D72, D91
C90
C90, D04, I18, D90, Q18, Q50
C80, C90, D11, D12, D84, D91, G11
C90, D81, D82, D90, J16, J24, J31