Yes! Grant’s package has been helpful to back out levels as well.

To be sure - I’d modify eqn 6.17 from your 2021 paper like in the screenshot (with x as you defined it). Then I can estimate with pooled poisson where the coefs of interest are on the third row interactions?

Awesome. Thanks so much for your reply!

@jmwooldridge.bsky.social @gmcd.bsky.social Hello! I have been enjoying using the etwfe approach and package in R, and I also have a question.

I want to run a DDD with staggered treatment using a poisson. Is there a way for me to further extend etwfe to incorporate the triple difference?