Ashenfelter, Orley. <br/><br/>
The estimation of income and substitution effects in a model of family labor supply /  
Orley Ashenfelter y James Heckman. 
 - [New Jersey] :   Princenton University,   1971. 
 - 17, [3] h. :   il. ;   28 cm. 
 - Princenton University. Working paper ;   29 .
 - Working paper. .
<br/><br/>Incluye bibliografía. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mano de obra.