Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/45723 
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dc.contributor.authorde Luna, Xavieren
dc.contributor.authorLundin, Mathiasen
dc.date.accessioned2010-02-22-
dc.date.accessioned2011-05-27T09:29:08Z-
dc.date.available2011-05-27T09:29:08Z-
dc.date.issued2009-
dc.identifier.urihttp://hdl.handle.net/10419/45723-
dc.description.abstractIn observational studies, the estimation of a treatment effect on an outcome of interest is often done by controlling on a set of pre-treatment characteristics (covariates). This yields an unbiased estimator of the treatment effect when the assumption of unconfoundedness holds, that is, there are no unobserved covariates affecting both the treatment assignment and the outcome. This is in general not realistically testable. It is, therefore, important to conduct an analysis about how sensitive the inference is with respect to the unconfoundedness assumption. In this paper we propose a procedure to conduct such a Bayesian sensitivity analysis, where the usual parameter uncertainty and the uncertainty due to the unconfoundedness assumption can be compared. To measure departures from the assumption we use a correlation coefficient which is intuitively comprehensible and ensures that the results of sensitivity analyses made on different evaluation studies are comparable. Our procedure is applied to the Lalonde data and to a study of the effect of college choice on income in Sweden.en
dc.language.isoengen
dc.publisher|aInstitute for Labour Market Policy Evaluation (IFAU) |cUppsalaen
dc.relation.ispartofseries|aWorking Paper |x2009:12en
dc.subject.jelC11en
dc.subject.jelC15en
dc.subject.ddc330en
dc.subject.keywordCausal infererenceen
dc.subject.keywordeffects of college choiceen
dc.subject.keywordpropensity scoreen
dc.subject.keywordregister dataen
dc.subject.stwSensitivitätsanalyseen
dc.subject.stwBayes-Statistiken
dc.subject.stwStatistische Methodenlehreen
dc.subject.stwBildungsertragen
dc.subject.stwSchwedenen
dc.titleSensitivity analysis of the unconfoundedness assumption in observational studies-
dc.typeWorking Paperen
dc.identifier.ppn601470435en
dc.rightshttp://www.econstor.eu/dspace/Nutzungsbedingungenen

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