Guy Grossman
LightNews LightNews
guygrossman.bsky.social
Guy Grossman
@guygrossman.bsky.social
9.9K followers 1.4K following 1.5K posts

Political science professor at UPenn, studying migration and forced displacement, human trafficking, and poor governance. Co-director of the Penn Development Research Initiative (PDRI-DevLab). Website: https://guygrossman.com .. more

Videos
Political science 41%
Sociology 23%
Posts Replies Media Videos
Pinned
guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · Sep 18
Rob Blair (@robertblair.bsky.social), Anna Wilke (@awilke.bsky.social), and I have a new draft of our paper "Can Community Policing Improve Police-Community Relations in a Low-Income Country Setting?"

Comments are welcome:
osf.io/preprints/os...
OSF
osf.io

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 2h
One sided cease fire…
rimaanabtawi.bsky.social Rima I Anabtawi @rimaanabtawi.bsky.social · 2h
Israel said it killed a top Hamas commander in Gaza, in what would be the highest-profile killing of a Hamas leader since the cease-fire began two months ago.

www.nytimes.com/2025/12/13/w...
Israel Says It Killed Senior Hamas Commander, Despite Cease-Fire
www.nytimes.com

Reposted by Marc Lynch, Guy Grossman

rimaanabtawi.bsky.social
Rima I Anabtawi @rimaanabtawi.bsky.social · 2h
Israel said it killed a top Hamas commander in Gaza, in what would be the highest-profile killing of a Hamas leader since the cease-fire began two months ago.

www.nytimes.com/2025/12/13/w...
Israel Says It Killed Senior Hamas Commander, Despite Cease-Fire
www.nytimes.com

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 1d
Nah, some people know they can make more money from writing such nonsense.

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 1d
This article is journalism malpractice. Reporting on Trump’s mafia style unconstitutional threats to defund the state as normal political “pressure campaign”.

www.nytimes.com/2025/12/11/u...
Indiana Lawmakers Reject Trump’s New Political Map
www.nytimes.com

Reposted by Anna O. Law, Richard S.J. Tol, Andrew Rudalevige , and 2 more

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 2d
Authoritarianism does not tolerate genuine federalism.

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 2d
He is 100% running …
captmarkkelly.bsky.social Captain Mark Kelly @captmarkkelly.bsky.social · 2d
I’ve been through a lot worse than anything Donald Trump or Pete Hegseth can throw at me. And I'm not backing down, because this isn't about me — it's about you and every American's First Amendment right.

Reposted by Guy Grossman

captmarkkelly.bsky.social
Captain Mark Kelly @captmarkkelly.bsky.social · 2d
I’ve been through a lot worse than anything Donald Trump or Pete Hegseth can throw at me. And I'm not backing down, because this isn't about me — it's about you and every American's First Amendment right.

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 3d
This project began in a "let's catch up" lunch meeting at APSA several years back.

We did not realize at the time how hard it would be to collect the data necessary to answer a simple RQ: Does publishing disaggregated electoral results deter voting aggregation fraud?
bjpols.bsky.social British Journal of Political Science @bjpols.bsky.social · 3d
From October 2025 -

Do More Disaggregated Electoral Results Deter Aggregation Fraud? - cup.org/3LBfv1G

"...we found no evidence that greater transparency leads to substitution into other forms of electoral manipulation..."

- Miguel R. Rueda, @guygrossman.bsky.social & Shuning Ge

#OpenAccess
BJPolS abstract discussing the impact of publishing election results at a more granular level to reduce election fraud and improve the integrity of electoral monitoring.

Reposted by Guy Grossman

bjpols.bsky.social
British Journal of Political Science @bjpols.bsky.social · 3d
From October 2025 -

Do More Disaggregated Electoral Results Deter Aggregation Fraud? - cup.org/3LBfv1G

"...we found no evidence that greater transparency leads to substitution into other forms of electoral manipulation..."

- Miguel R. Rueda, @guygrossman.bsky.social & Shuning Ge

#OpenAccess
BJPolS abstract discussing the impact of publishing election results at a more granular level to reduce election fraud and improve the integrity of electoral monitoring.

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 5d
this makes clear that "we are at war with narco terrorist" is a spectacle, a charade, a simulacra of an anti-drug policy.

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
Yeah; not those guys. Not the traffickers; just the low ranked movers and dealers.

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
That’s one way to describe ISF air strikes that targeted tent area for displaced people in Gaza, which killed two kids.
atrupar.com Aaron Rupar @atrupar.com · 10d
Trump on Gaza: "They had a problem today with a bomb that went off. Hurt some people pretty badly, probably killed some people. Just happened. But we have peace in the Middle East. People don't realize it."

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
It’s pretty clear that much like Duterte, Trump believes that drug dealing is punishable by death.
atrupar.com Aaron Rupar @atrupar.com · 10d
Q: If it's found that survivors were actually killed while clinging onto that boat, should Sec. Hegseth, Admiral Bradley, or others be punished?

TRUMP: I think you're gonna find that this is war. That these people were killing our people by the millions, actually.

Reposted by Guy Grossman, David Darmofal

atrupar.com
Aaron Rupar @atrupar.com · 10d
Trump on Gaza: "They had a problem today with a bomb that went off. Hurt some people pretty badly, probably killed some people. Just happened. But we have peace in the Middle East. People don't realize it."

Reposted by Guy Grossman, Alan Richardson, David R. Miller

atrupar.com
Aaron Rupar @atrupar.com · 10d
Q: If it's found that survivors were actually killed while clinging onto that boat, should Sec. Hegseth, Admiral Bradley, or others be punished?

TRUMP: I think you're gonna find that this is war. That these people were killing our people by the millions, actually.

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
🚨New publication🚨

We examine how External Advisory Committees (EACs) can help researchers navigate tough ethical challenges that arise in impact evaluations. We hope it adds to discussions on what institutional safeguards for ethical impact evaluations should look like www.pnas.org/doi/10.1073/...

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
We tried to implment this logic. We had prompts that measured "explict" and "implicit causal claims". But, we failed to measure these well: we were not convinced of GPT's classification after manual validation. We might give this another try, since this is so central to the question at hand.

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
Tom - thanks for discussing our paper thoughtfully. We 100% agree that a big part of the CR is that we should be more careful of using a cusal langauge when we have research design that allows us to do so, and use for example, a descptive langauge (correlation, associations) when we don't.

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
Ben - thanks. This is a first draft that has not been submitted and is awaiting comments. We already realize we need to (a) explain better the problems associated with over-reliance on survey experiments, and (b) tone down the CR cheerleading. Thanks again!

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
There's no "fog of war" when there's no war.
financialtimes.com Financial Times @financialtimes.com · 10d
Good morning, New York. While you were sleeping, Pete Hegseth defending the legality of US attacks on alleged drug-smuggling boats in the Caribbean Sea was the most-read story on.ft.com/441vrB4

Reposted by Guy Grossman

financialtimes.com
Financial Times @financialtimes.com · 10d
Good morning, New York. While you were sleeping, Pete Hegseth defending the legality of US attacks on alleged drug-smuggling boats in the Caribbean Sea was the most-read story on.ft.com/441vrB4

Reposted by Guy Grossman

dandekadt.bsky.social
Dan de Kadt @dandekadt.bsky.social · 10d
I am going to humbly† suggest you spend two hours today reading this new paper, which should now be required reading for everyone, and our "Good Description" paper together.

Brief thread about why 👇

†Note: I recognize this is not actually humble at all but this is social media and I'm a hustler

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
Winds of Change

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
Emily - given your comment about the perestroika hoopla, you might also like this other paper of ours from the same project: osf.io/preprints/os... (forthcoming at POP)
OSF
osf.io

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
Thanks for the shout-out, John! Very kind of you.

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
Comments are truly welcome. This is just a first draft.
carotorreblanca.bsky.social Carolina Torreblanca @carotorreblanca.bsky.social · 10d
New paper! @william-dinneen.bsky.social @guygrossman.bsky.social Yiqing Xu and I use GPT to code 91k articles from 174 polisci journals (2003–2023)and track research designs, transparency practices, and citations. How has the credibility revolution reshaped the discipline? doi.org/10.31235/osf...
🧵

guygrossman.bsky.social
Guy Grossman @guygrossman.bsky.social · 10d
Thanks for the shout out Tom!

Indeed we wrote a purely descriptive correlational paper on the credibility revolution. We hope you find it interesting.
tompepinsky.com Tom Pepinsky @tompepinsky.com · 10d
One observation about this interesting new paper on the credibility revolution in political science journal articles is that all (?) of its interesting findings are correlational, not causal

osf.io/preprints/so...

Reposted by Brian A. Nosek, Maarten Vink, Cyrus Samii , and 9 more

carotorreblanca.bsky.social
Carolina Torreblanca @carotorreblanca.bsky.social · 10d
New paper! @william-dinneen.bsky.social @guygrossman.bsky.social Yiqing Xu and I use GPT to code 91k articles from 174 polisci journals (2003–2023)and track research designs, transparency practices, and citations. How has the credibility revolution reshaped the discipline? doi.org/10.31235/osf...
🧵

Reposted by Guy Grossman, Bruce Bradbury

tompepinsky.com
Tom Pepinsky @tompepinsky.com · 10d
One observation about this interesting new paper on the credibility revolution in political science journal articles is that all (?) of its interesting findings are correlational, not causal

osf.io/preprints/so...

Reposted by Elizabeth Sharrow, Richard S.J. Tol, Joe R. Feagin , and 10 more

atrupar.com
Aaron Rupar @atrupar.com · 11d
Trump on Somalis: "We're gonna go the wrong way if we keep taking in garbage into our country. Ilhan Omar is garbage. She's garbage. Her friends are garbage."