I am an Assistant Professor in the Department of Economics at Vanderbilt University.

I work primarily on Econometrics. My research interests span:

• Causal inference;
• Semi- and non-parametric methods;
• Specification testing.

Recent Updates:

Jonathan Roth and I have been working on a paper that characterizes when DiD estimators that rely on a parallel-trends assumption are insensitive/robust to functional form restrictions. Link to our paper is here. Let us know what you think!

Since I routinely get asked about/whether the problems associated with event-study specifications based on TWFE linear regression models are "real", Brant and I wrote this post using a simple simulated DGP to show how much these specifications can be unreliable. Check it out!

My paper with Brantly Callaway, "Difference-in-Differences with Multiple Time Periods" has been accepted at the Journal of Econometrics. We have also updated our did R package. We have a lot over there, including DiD introductions and examples of how to use our tools. Check it out!

My paper with Jun Zhao, "Doubly Robust Difference-in-Differences Estimators" is now published at the Journal of Econometrics. You can easily implement it using the DRDID R package. Give it a try!

Check out my post revisiting the debate around health policies, economic growth and the 1918 Spanish flu.