'Metrics Notes
"One Weird Trick" to Characterize Effective Populations in Design-Based Specifications, September 2025 [Note]
A Crash Course in Design-Based Econometrics, Spring 2025
Introduction to "Design" [Slides]
Weak IV, Weights and Clusters [Slides]
Formulas and Models [Slides]
Undergraduate Econometrics Lecture Slides, Spring 2024
Introduction [Slides]
Probability and Statistics [Slides]
Asymptotic Statistics [Slides]
Introduction to Regression [Slides]
Multivariate Regression [Slides]
Panel Data [Slides]
Instrumental Variables [Slides]
Regression Discontinuity [Slides]Â
Note: some of these slides were co-developed with Jon Roth
The Role of Models in "Reduced Form" Empirics, March 2024 [Slides]
Graduate Applied Econometrics Lecture Slides, Spring 2024
Regression Recap [Slides]
Selection on Observables [Slides]
Parallel Trends [Slides]
Negative Weights [Slides]
Clustering [Slides]
IV Mechanics [Slides]
IV Identification [Slides]
Shift-Share and Recentered IV [Slides]
Regression Discontinuity [Slides]
Nonlinear Models [Slides]
On Quasi-Experimental Shift-Share IV with Heterogeneous Treatment Effects, with Kirill Borusyak. July 2023 [Note]
"Stacking" Regressions, February 2022 [Twitter thread]
The Bayesian Bootstrap, January 2022 [Twitter thread]
Subtracting the Propensity Score in Linear Models, September 2018 [Note]
On Residualized Outcome Regressions, March 2018 [Note]
Interpreting Instrumented Difference-in-Differences, with Sally Hudson & Jack Liebersohn. September 2017 [Note]
Examiner Designs and First-Stage F Statistics: A Caution, March 2017 [Note]