TY  - RPRT
        AU  - Frölich, Markus
AU  - Melly, Blaise
        TI  - Identification of Treatment Effects on the Treated with One-Sided Non-Compliance
        PY  - 2008/Aug/
        PB  - Institute of Labor Economics (IZA)
        CY  - Bonn
        T2  - IZA Discussion Paper
        IS  - 3671
        UR  - https://www.iza.org/publications/dp3671
        AB  - Traditional instrumental variable estimators do not generally estimate effects for the treated population but for the unobserved population of compliers. They do identify effects for the treated when there is one-sided perfect non-compliance. However, this property is lost when covariates are included in the model. In this case, we show that the effects for the treated are still identified but require modified estimators. We consider both average and quantile treatment effects and allow the instrument to be discrete or continuous.
        KW  - instrumental variables
KW  - non-compliance
KW  - treatment effects
KW  - missing data
        ER  -