Sign in

Zach Shahn

@zshahn.bsky.social
146 followers 332 following 71 posts

Causal inference, assistant professor at CUNY SPH. All likes are endorsements, but maybe by my 3 year old who stole my phone.

PostsRepliesMedia
Zach Shahn @zshahn.bsky.social · 12/05/2026
Slightly increase a band Boyz 3 Men
010
Zach Shahn @zshahn.bsky.social · 07/05/2026
This actually kind of works though
000
Reposted by Zach Shahn
Matt Hill @gethill.bsky.social · 06/05/2026
Prime with ads. Just how Kubrick intended.
32864411368
Zach Shahn @zshahn.bsky.social · 18/03/2026
This is what drives the newly rich main character of Remainder insane with Naz playing the role of chatbot. Also AI psychosis is probably similar to billionaire psychosis
021
Reposted by Zach Shahn
sadvil 😎 @sadvil.bsky.social · 16/01/2026
protestors have painted what appears to be a tunnel on the side of the mountain, causing ICE agents to run into the mountain at full speed. disgusting.
165119512313
Zach Shahn @zshahn.bsky.social · 18/11/2025
Waiting for the regression discontinuity
010
Reposted by Zach Shahn
Marco Piccininni @mpiccininni3.bsky.social · 11/11/2025
Thank you for the invitation and for the great discussion!
092
Zach Shahn @zshahn.bsky.social · 03/11/2025
We (Audrey Renson and @pausalz.bsky.social) Just updated this paper on interference in time-varying DiD settings from a while ago: arxiv.org/abs/2405.11781. Still see papers coming out regularly about problems that I'm pretty sure this solves...
arxiv.org
Structural Nested Mean Models Under Parallel Trends with Interference
Despite the common occurrence of interference in Difference-in-Differences (DiD) applications, standard DiD methods rely on an assumption that interference is absent, and comparatively little work has...
011
Zach Shahn @zshahn.bsky.social · 29/10/2025
Is there any movement to get them to stop showing players’ postseason stats on tv? I wanna know how good they are, not how lucky they were the past few games
000
Zach Shahn @zshahn.bsky.social · 16/10/2025
I think this paper we just put out is kind of interesting (arxiv.org/abs/2509.20506)! Wu and Mao (arxiv.org/abs/2504.20470) cleverly showed that if you have multiple studies and 'study' is associated with Y(0) but not Y(1) given Y(0), you can identify the joint distribution of Y(0) and Y(1).
arxiv.org
Identification and Estimation of Joint Potential Outcome Distributions from a Single Study
Most causal inference methods focus on estimating marginal average treatment effects, but many important causal estimands depend on the joint distribution of potential outcomes, including the probabil...
110
Zach Shahn @zshahn.bsky.social · 06/08/2025
For anyone who's interested in how deck chairs should be arranged on the Titanic, we have a short note on the assumptions/rationale underlying the use of parental longevity as a proxy outcome (increasingly common) in Mendelian Randomization: arxiv.org/pdf/2508.03431
arxiv.org
110
Reposted by Zach Shahn
Jon Bois @jonbois.bsky.social · 07/12/2024
my first new episode of pretty good in seven years, now free to watch for everybody: THE HISTORY OF SLIPPING ON BANANA PEELS
youtu.be
The history of slipping on banana peels | Pretty Good, episode 14
YouTube video by Secret Base
702362650
Reposted by Zach Shahn
noam @noamchompers.bsky.social · 14/03/2025
columbia revoking degrees is a real 'i told you so' moment for my anxiety dreams
0393
Zach Shahn @zshahn.bsky.social · 04/02/2025
Does statistics have any good synonyms for "biased" estimators...?
020
Zach Shahn @zshahn.bsky.social · 28/01/2025
Feel like it might be good to weed out people dumb enough to believe he'd ever pay them?
041