In this paper, we systematically analyze the empirical importance of standard conditions for the validity and generalizability of field experiments: the internal and external overlap and unconfoundedness conditions. We experimentally varied the …
Performs treatment assignment for (field) experiments considering available, possibly multivariate and continuous, information (covariates, observable characteristics), that is: forms balanced treatment groups, according to the minMSE-method as …
We present a new approach to treatment assignment in (field) experiments for the case of one or multiple treatment groups. This approach -- which we call the minimizing Mean Squared Error (MSE) approach -- uses sample characteristics to obtain …