000 00611pam a2200181a 44500
999 _c95232
_d95232
008 170807b2013 xxu||||| |||| 00| 0 eng d
100 _aGelman, Andrew
110 _aNational Bureau of Economic Research
245 _aWhy ask why? :
_bForward causal inference and reverse causal questions /
_cAndrew Gelman and Guido Imbens
260 _aCambridge
_bNBER
_c2013
300 _a9p
490 _aNBER Working Paper ;
_v19614
650 _aNBERWP 19614
650 _aE10767.pdf
700 _aImbens, Guido
856 _uhttp://elibrary.igidr.ac.in/e-library/working papers/NBER/2013/E10767.pdf
942 _2ddc
_cE