TY - JOUR
AU1 - Heckman, James
AU2 - Ichimura, Hidehiko
AU3 - Smith, Jeffrey
AU4 - Todd, Petra
AU5 - 
TI - Characterizing Selection Bias Using Experimental Data
JF - Econometrica
DO - 10.2307/2999630
DA - 1998-09-01
UR - https://www.deepdyve.com/lp/unpaywall/characterizing-selection-bias-using-experimental-data-2HBxSJt3X2
DP - DeepDyve
ER -