| 000 | 00639nam#a2200217#c#4500 | ||
|---|---|---|---|
| 003 | IEF | ||
| 005 | 20180219172715.0 | ||
| 008 | 960130s1995 uuu##d#fr####| 0||u| |u | ||
| 040 | _aIEF | ||
| 100 | 1 |
_aHeckman, James Joseph _920868 |
|
| 245 | _aRandomization as an instrumental variable | ||
| 260 |
_aCambridge (Mass.) _bNational Bureau of Economic Research _c1995 |
||
| 300 |
_av., graf. _c22 cm. |
||
| 500 | _aConclusiones.-Bibliografía | ||
| 490 | _aNBER. Technical Working Papers; 184 | ||
| 650 | 4 |
_aVARIABLES ESTADISTICAS _948670 |
|
| 650 | 4 |
_aMODELOS ECONOMETRICOS _947776 |
|
| 942 | _cLIB | ||
| 942 | _z83657 | ||
| 999 |
_c124066 _d124066 |
||