Becker, Sascha O.; Caliendo, Marco - In: Stata Journal 7 (2007) 1, pp. 71-83
Based on the conditional independence or unconfoundedness assump- tion, matching has become a popular approach to … matching estimators are not robust. We address this prob- lem with the bounding approach proposed by Rosenbaum (Observational … influence the selection process to undermine the implications of the matching analysis. Copyright 2007 by StataCorp LP. …