External treatment effects and program implementation bias /
| Main Author: | |
|---|---|
| Corporate Author: | |
| Format: | Book |
| Language: | English |
| Published: |
Cambridge, MA (1050 Massachusetts Ave., Cambridge 02138) :
National Bureau of Economic Research,
[2000]
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| Series: | NBER technical working paper series ;
no. 250 NBER technical working paper series 250 |
| Subjects: |