I am an Associate Professor of Economics at Emory University.

My research interests lie in Applied Econometrics, particularly in Causal Inference. In the last few years, I have focused on better understanding and improving Difference-in-Differences methods.

I am currently an Associate Editor for the Journal of Econometrics and for the Journal of Business & Economic Statistics.

Recent Updates:

- I have been working on this DDD paper for a while (see my 2022 Triple Differences lecture on YouTube), and I am glad this updated version is out! Plese check "Better Understanding Triple Differences Estimators" , joint with my Ph.D. student Marcelo Ortiz-Villavicencio. This paper has some nice and surprising results, stressing that we should not understand DDD designs as simply the difference of two DiDs. Cool stuff, if you ask me!

- If you are looking for guidance on DiDs, we have good news for you! Andrew Baker, Brant Callaway, Scott Cunningham, Andrew Goodman-Bacon, and I are finalizing our paper "Difference-in-Differences Designs: A Practitioner's Guide" . We hope to post the ``final'' version in the next couple of weeks, but you should see very few changes. Replication codes and data will also be posted!