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

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