Double trouble on the value of twins-based estimation of the return to schooling
| Glavni avtor: | |
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| Drugi avtorji: | |
| Format: | Knjiga |
| Jezik: | English |
| Izdano: |
Cambridge
National Bureau of Economic Research
1998.
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| Serija: | NBER working paper series
no.6721 |
| Teme: |