Propensity score matching methods for non-experimental casual studies
Dehejia, Rajeev H
Propensity score matching methods for non-experimental casual studies - Cambridge, MA NBER 1998 - 22p - NBER Working Paper Series .
WP 6829
Propensity score matching methods for non-experimental casual studies - Cambridge, MA NBER 1998 - 22p - NBER Working Paper Series .
WP 6829