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Published 20 hours ago • verified publisher icon tilburgsciencehub

Goodman-Bacon Decomposition

Open arutyunovv opened this issue 1 year ago • 6 comments
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Hi @valerievossen, @srosh2000, and @alexandervossen,

I hope you've all had a great weekend!

I am opening a pull request for my topic on the Goodman-Bacon decomposition. I also went into some detail on why the TWFE estimator may fail in settings with staggered treatment timing, so it could be worthwhile to change the title of the article to reflect that.

Please let me know what improvements you think could be made and also what you think about the title issue. Thank you!

Best, Victor

arutyunovv avatar Jul 28 '24 16:07 arutyunovv

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netlify[bot] avatar Jul 28 '24 16:07 netlify[bot]

Hi @arutyunovv nice job! I haven't done a detailed review but I believe we have some articles about why TWFE may fail in staggered settings, @srosh2000 or @valerievossen maybe you can point out some relevant ones for Victor to cross reference?

shrabasteebanerjee avatar Jul 29 '24 14:07 shrabasteebanerjee

Hi @arutyunovv,

It reads super clear! I added only a few small comments.

  • I fixed one codeblock tag as it wasn't rendering for me yet.

  • For a title, I thought of: "Uncovering TWFE Bias for Staggered DiD with the Goodman-Bacon Decomposition" What do you think?

  • About @shrabasteebanerjee's comment, I think this is mostly the Staggered DiD topic, as far as I could find. You could maybe add an extra sentence to the first tipbox referring to this. Something in the direction of: "And, refer to the Staggered-DiD article for a discussion on common issues of the classic TWFE DiD approach."

  • And, you might want to change the weight of the article (also as other DiD topics have been merged now!

valerievossen avatar Jul 29 '24 15:07 valerievossen

Hi @valerievossen and @shrabasteebanerjee,

Thanks a lot for your comments!

  • We have some articles on TWFE in general and, as Valerie says, one of them (Roshini's article on staggered DiD) very briefly discusses why they fail. She focuses more on the solution (Callaway and Sant'Anna in this case), while I focus on why TWFE can fail and how we can detect these failures. Therefore I think the two complement each other very well - I'll review mine to see where more references to Roshini's article can be added and once she is back we could also maybe incorporate some references to my article in hers.
  • I like the title suggestion, it reflects the article's content much more accurately. Unless it's a little too long?
  • And yes, I will change the weight!

arutyunovv avatar Jul 29 '24 19:07 arutyunovv

@arutyunovv I was thinking the same, could be a bit shorter. What about "Uncovering Staggered DiD Bias with the Goodman-Bacon Decomposition"?

valerievossen avatar Jul 30 '24 08:07 valerievossen

Hi @srosh2000,

Thanks for your comments! I've now made the changes you suggested - let me know whether you think there is anything else to change still.

@shrabasteebanerjee I'm also tagging you so that you can have a final look before merging. Thanks!

Best, Victor

arutyunovv avatar Aug 19 '24 05:08 arutyunovv