TY - ELEC A1 - Leuven, E. A1 - Sianesi, B. T1 - PSMATCH2: Stata module to perform full Mahalanobis and propensity score matching, common support graphing, and covariate imbalance testing Y1 - 2003 UR - http://ideas.repec.org/c/boc/bocode/s432001.html PB - Boston College Department of Economics ER -