His research interests lie in the design and analysis of observational studies. In particular, Colin focuses on investigating whether existing qualitative advice from quasi-experimentalists on how to conduct a "good" observational study can be shown to produce demonstrable quantitative improvements in the resulting inference. Much of his work utilizes modern optimization techniques in the analysis of observational studies. Colin is interested in applying his methodological work to observational studies in health care, public health and public policy. He has published in the Journal of the American Statistical Association, Biometrics, and the Annals of Applied Statistics.Colin received his AB in statistics from Harvard University and his PhD in statistics from the Wharton School of the University of Pennsylvania.