This paper uses the control function to develop a framework for testing for selection bias. The idea behind our … magnitude of potential selection bias. Averaging this correction term with respect to appropriate weights yields the degree of … selection bias for alternative treatment effects of interest. One advantage of our framework is that it motivates when is …

and show they behave well in realistic scenarios, correcting the large bias problem of the full sample estimator. We use …

level does not fully alleviate the bias. In fact, the magnitude and direction of the bias depend on the size of the …

and show they behave well in realistic scenarios, correcting the large bias problem of the full sample estimator. We use …