About this site
This is the most up-to-date version of my academic website. I'm an associate professor at the University of Colorado Anschutz Medical Campus (more about me on the About page).
See the Book page for updates on my forthcoming book on master's/PhD-level methods for health services research and health economics to be published by Cambridge University Press in 2027. The book is completed and it is in the final stages of review and editing. The first part of the book deals with parametric and nonparametric model estimation and inference, including linear regression/OLS, maximum likelihood estimation, GLMs, and marginal effects to interpret model results. The first part also introduces the potential outcomes framework to conceptualize causality as a prediction problem dealing with missing counterfactuals. The second part covers the most common methods when ignorability (or the conditional independence assumption) does not hold: difference-in-differences, regression discontinuity, instrumental variables, and a sprinkle of longitudinal data (it helps, but not much). Read the Preface to understand more about the book approach and teaching philosophy. Everything in the book can be replicated in Stata and R. The supplemental material includes many datasets and additional code to replicate papers.
Email is the best way to get in touch with me. Although I can't answer all emails (but I try), I appreciate the questions and feedback (and the thank-yous, of course). Do keep in mind the copyright notice, though. I've had bad experiences in the past. It's not pleasant to find your work on somebody else's book without attribution.