| 000 | 00519pam a2200193a 44500 | ||
|---|---|---|---|
| 008 | 170807b2002 xxu||||| |||| 00| 0 eng d | ||
| 020 | _a | ||
| 082 | _a | ||
| 100 | _aBertrand, Marianne | ||
| 245 | _aHow much should we trust differences-in-differences estimates? | ||
| 260 |
_aCambridge, MA _bNBER _c2002 |
||
| 300 | _a25p | ||
| 490 | _aNBER working papers | ||
| 700 | _aMullainathan Sendhil | ||
| 700 | _aDuflo Esther | ||
| 700 | _aNational Bureau Of Economic Research | ||
| 906 | _a58935 | ||
| 942 |
_2ddc _cG |
||
| 999 |
_c138723 _d138723 |
||