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Practical propensity score matching : a reply to Smith and Todd
Dehejia, Rajeev H., (2005)
Endogenous stratification in randomized experiments
Abadie, Alberto, (2013)
Abadie, Alberto, (2018)
Characterizing selection bias using experimental data
Heckman, James J., (1998)
Reconciling conflicting evidence on the performance of propensity-score matching methods
Smith, Jeffrey A., (2001)