Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/34787
Authors: 
Frölich, Markus
Melly, Blaise
Year of Publication: 
2008
Series/Report no.: 
IZA Discussion Papers 3671
Abstract: 
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.
Subjects: 
Treatment effects
instrumental variables
non-compliance
missing data
JEL: 
C13
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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