is found to be extremely sensitive to selection on unobservables, then one should be wary about inferring an adverse … selection on unobservables. Specifically, we find evidence of a negative causal effect of work on healthier children, but …

of selection on unobservables. We then propose a new minimum biased estimator of the average treatment effect. We assess …

of selection on unobservables. We then propose a new minimum biased estimator of the average treatment effect. We assess … in the case of selection on unobservables. We then propose a new minimum biased estimator of the average treatment effect …, Propensity Score, Bias, Unconfoundedness, Selection on Unobservables ∗ The authors are grateful for helpful discussions with …

of selection on unobservables. We then propose a new minimum biased estimator of the average treatment effect. We assess … propensity score based estimators of common average treatment effect parameters in the case of selection on unobservables. We …, unconfoundedness, selection on unobservables Corresponding author: Daniel L. Millimet Department of Economics Southern …