Introduction | Case Study 1: Bounding the Effects of a Job Training Program | LaLonde's Experimental Sample | Dehejia-Wahba Sample | Bounds on ATE | Bounds on ATT | NSW treated and PSID control | Case Study 2: Bounding the Effect of Right Heart Catheterization | Bounding the Average Treatment Effect on the Treated | Bounding the Average Treatment Effect | Case Study 3: EFM | References

Introduction | Least Squares Estimation with Heteroskedastic Errors | Sketched Least Squares Estimation | Numerical Illustration | Estimating the Return to Education | How to Choose $m$ | OLS Estimation Results | 2SLS Estimation Results | References