Heckman, James Joseph
Accounting for dropouts in evaluations of social experiments .-- Cambridge (Mass.) : National Bureau of Economic Research , 1994
.--24 p. graf. 22 cm. .-- ( NBER technical working papers ; 166 ).
Resumen. Conclusiones. Bibliografía
POLITICA ECONOMICA
ASPECTOS SOCIALES
Smith, Jeffrey Andrew
Taber, Christopher
Accounting for dropouts in evaluations of social experiments .-- Cambridge (Mass.) : National Bureau of Economic Research , 1994
.--24 p. graf. 22 cm. .-- ( NBER technical working papers ; 166 ).
Resumen. Conclusiones. Bibliografía
POLITICA ECONOMICA
ASPECTOS SOCIALES
Smith, Jeffrey Andrew
Taber, Christopher