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040 _aIEF
041 _aSPA
100 1 _aAbadie, Alberto
_947408
245 _aSemiparametric Estimation of instrumental variable models for causal effects
_cAlberto Abadie
260 _aCambridge (Mass.)
_bNational Bureau of Economic Research
_c2000
300 _a40 p.
_b tabl.
_c22 cm.
500 _aResumen. Bibliografía. Conclusiones
490 _aNBER technical working papers;260
650 4 _aUNIDAD FAMILIAR
_948642
650 4 _aANALISIS MACROECONOMICO
_925837
942 _cLIB
942 _z93854
999 _c57915
_d57915