Heckman, James Joseph
Randomization as an instrumental variable .-- Cambridge (Mass.) : National Bureau of Economic Research , 1995
.--v., graf. 22 cm. .-- ( NBER. Technical Working Papers; 184 ).
Conclusiones.-Bibliografía
VARIABLES ESTADISTICAS
MODELOS ECONOMETRICOS
Randomization as an instrumental variable .-- Cambridge (Mass.) : National Bureau of Economic Research , 1995
.--v., graf. 22 cm. .-- ( NBER. Technical Working Papers; 184 ).
Conclusiones.-Bibliografía
VARIABLES ESTADISTICAS
MODELOS ECONOMETRICOS