Research

Direct and Indirect Treatment Effects with Time-Varying Covariates (with Kyle Butts and Joakim Westerlund), Journal of Applied Econometrics, 2026. 

A simple reformulation of the common correlated effects model (with Peter Schmidt and Jeffrey Wooldridge), Econometric Reviews, 1-13, 2026. 

Dynamic treatment effect estimation with interactive fixed effects and short panels (with Kyle Butts), Journal of Econometrics, vol. 250, pp. 106013, 2025.

Moment-Based Estimation of Linear Panel Data Models with Factor-Augmented Errors, Journal of Econometric Methods, vol. 13, no. 2, pp. 299-317, 2024.

Testing Factors in CCE (with Joakim Westerlund), Economics Letters 230, 111245, 2023. 

Information Equivalence Among Transformations of Semiparametric Nonlinear Panel Data Models, Oxford Bulletin of Economics and Statistics, 85(6), 1341-1361, 2023.

More Efficient Estimation of Multiplicative Panel Data Models in the Presence of Serial Correlation (with Jeffrey Wooldridge, revise and resubmit at Oxford Bulletin of Economics and Statistics).

An Averaging Alternative to Pre-Trend Testing (with Qiushi Bu).

Universal Treatment Designs with Unpredictable Trends (with Irene Botosaru and Kyle Butts).

Nonparametric Identification of Value-Added Production Functions with Mismeasured Materials (with Joonkyo Hong and Davide Luparello).

Relaxing Strict Exogeneity of Treatment.

Generalized Latent Group Parallel Trends (with Kyle Butts and Ali Mehrabani).

Determinants of CO2: New Insights from Transformed Estimation of Interactive Effects Models (with Jongho Choe and Cynthia Yang).

It's About Time (Series): A Simple Correction for Difference-in-Differences (with Gary Cornwall and Scott Wentland).