TY  - JOUR
TI  - Matching As An Econometric Evaluation Estimator
AU  - James J. Heckman
AU  - Hidehiko Ichimura
AU  - Petra Todd
JO  - The Review of Economic Studies
PY  - 1998
VL  - 65
IS  - 2
DO  - 10.1111/1467-937x.00044
UR  - https://doi.org/10.1111/1467-937x.00044
ER  -