Resources
Here is a link to youtube playlist of recordings for the "DiD Reading Group", where authors on the frontier of difference-in-differences methodology given a talk on their paper(s) in this area.
Here is a link to a blog by Fernando Rios-Avila, which has pages describing how to use STATA packages such as Woolridge's (2021) Mundlak two-way fixed effects estimator and Callaway and Sant'Anna's (2021) difference-in-differences estimator.
Here is a link to youtube repository of recordings for the Tobacco Online Policy Seminar, where researchers working on tobacco-related topics present their work(s) in progress and/or completed paper(s). Anyone can register to attend and/or apply to present in the seminar using the website linked above.
As a bonus, here is a recording of me presenting in this seminar.