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Programme evaluation with multiple treatments
Frölich, Markus, (2002)
Using matching, instrumental variables and control functions to estimate economic choice models
Heckman, James J., (2003)
Simple and bias-corrected matching estimators for average treatment effects
Abadie, Alberto, (2002)
Instrumental variables estimates of the effect of subsidized training on the quantiles of trainee earnings
Abadie, Alberto, (1999)