Joris Frese
@fresejoris.bsky.social
PhD candidate in political science at the EUI [On the 25/26 job market].
Currently visiting Harvard's Department of Government.
Interested in: political behavior, quantitative methods, metascience.
https://www.jorisfrese.com/
Currently visiting Harvard's Department of Government.
Interested in: political behavior, quantitative methods, metascience.
https://www.jorisfrese.com/
Pinned
Joris Frese
@fresejoris.bsky.social
· May 21
🇪🇺🇦🇫 Published Today in CPS 🇪🇺🇦🇫
“Stand by those who share our values” – how refugees fleeing the Taliban improved European attitudes toward immigration
Article: journals.sagepub.com/doi/10.1177/...
Pre-print: osf.io/preprints/os...
Thread: 1/8
“Stand by those who share our values” – how refugees fleeing the Taliban improved European attitudes toward immigration
Article: journals.sagepub.com/doi/10.1177/...
Pre-print: osf.io/preprints/os...
Thread: 1/8
Reposted by Joris Frese
My colleague Kevin Munger asked me and a bunch of editors to sit and think through AI and peer review. Our take:
osf.io/9sxnc/files/...
We envision an increased (!) involvement of humans in the evaluation of social science.
osf.io/9sxnc/files/...
We envision an increased (!) involvement of humans in the evaluation of social science.
January 28, 2026 at 9:59 PM
My colleague Kevin Munger asked me and a bunch of editors to sit and think through AI and peer review. Our take:
osf.io/9sxnc/files/...
We envision an increased (!) involvement of humans in the evaluation of social science.
osf.io/9sxnc/files/...
We envision an increased (!) involvement of humans in the evaluation of social science.
Reposted by Joris Frese
🌍🇺🇸 Published Today in PNAS Nexus 🌍🇺🇸
How can we foster collective climate action?
- led by @dgoldwert.bsky.social, @smconstantino.bsky.social & @madalina.bsky.social
- 17 behavioral interventions, designed by 50 experts
- tested on >30000 US participants
academic.oup.com/pnasnexus/ar... 🧵 1/11
How can we foster collective climate action?
- led by @dgoldwert.bsky.social, @smconstantino.bsky.social & @madalina.bsky.social
- 17 behavioral interventions, designed by 50 experts
- tested on >30000 US participants
academic.oup.com/pnasnexus/ar... 🧵 1/11
January 27, 2026 at 8:01 PM
🌍🇺🇸 Published Today in PNAS Nexus 🌍🇺🇸
How can we foster collective climate action?
- led by @dgoldwert.bsky.social, @smconstantino.bsky.social & @madalina.bsky.social
- 17 behavioral interventions, designed by 50 experts
- tested on >30000 US participants
academic.oup.com/pnasnexus/ar... 🧵 1/11
How can we foster collective climate action?
- led by @dgoldwert.bsky.social, @smconstantino.bsky.social & @madalina.bsky.social
- 17 behavioral interventions, designed by 50 experts
- tested on >30000 US participants
academic.oup.com/pnasnexus/ar... 🧵 1/11
Reposted by Joris Frese
🎺 Call for proposals 🎺
1️⃣ replicate an existing experiment
2️⃣ run a novel experiment
on repdata.com
3️⃣ coauthor with Mary McGrath and me to meta-analyze the replications and existing studies
4️⃣ publish your study
details: alexandercoppock.com/replication_...
applications open Feb 1
please repost!
1️⃣ replicate an existing experiment
2️⃣ run a novel experiment
on repdata.com
3️⃣ coauthor with Mary McGrath and me to meta-analyze the replications and existing studies
4️⃣ publish your study
details: alexandercoppock.com/replication_...
applications open Feb 1
please repost!
January 27, 2026 at 10:16 PM
🎺 Call for proposals 🎺
1️⃣ replicate an existing experiment
2️⃣ run a novel experiment
on repdata.com
3️⃣ coauthor with Mary McGrath and me to meta-analyze the replications and existing studies
4️⃣ publish your study
details: alexandercoppock.com/replication_...
applications open Feb 1
please repost!
1️⃣ replicate an existing experiment
2️⃣ run a novel experiment
on repdata.com
3️⃣ coauthor with Mary McGrath and me to meta-analyze the replications and existing studies
4️⃣ publish your study
details: alexandercoppock.com/replication_...
applications open Feb 1
please repost!
🌍🇺🇸 Published Today in PNAS Nexus 🌍🇺🇸
How can we foster collective climate action?
- led by @dgoldwert.bsky.social, @smconstantino.bsky.social & @madalina.bsky.social
- 17 behavioral interventions, designed by 50 experts
- tested on >30000 US participants
academic.oup.com/pnasnexus/ar... 🧵 1/11
How can we foster collective climate action?
- led by @dgoldwert.bsky.social, @smconstantino.bsky.social & @madalina.bsky.social
- 17 behavioral interventions, designed by 50 experts
- tested on >30000 US participants
academic.oup.com/pnasnexus/ar... 🧵 1/11
January 27, 2026 at 8:01 PM
🌍🇺🇸 Published Today in PNAS Nexus 🌍🇺🇸
How can we foster collective climate action?
- led by @dgoldwert.bsky.social, @smconstantino.bsky.social & @madalina.bsky.social
- 17 behavioral interventions, designed by 50 experts
- tested on >30000 US participants
academic.oup.com/pnasnexus/ar... 🧵 1/11
How can we foster collective climate action?
- led by @dgoldwert.bsky.social, @smconstantino.bsky.social & @madalina.bsky.social
- 17 behavioral interventions, designed by 50 experts
- tested on >30000 US participants
academic.oup.com/pnasnexus/ar... 🧵 1/11
Reposted by Joris Frese
Fascinating / dark paper: www.nber.org/papers/w34747
A Few Bad Apples? Academic Dishonesty, Political Selection, and Institutional Performance in China
Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, an...
www.nber.org
January 26, 2026 at 8:47 PM
Fascinating / dark paper: www.nber.org/papers/w34747
Reposted by Joris Frese
Reposted by Joris Frese
NEW PAPER ALERT! My paper, with @bjornhoyland.bsky.social , on how “policy loss” shapes support for the EU has just been published in @cpsjournal.bsky.social. Check it out!
1/
1/
January 26, 2026 at 3:12 PM
NEW PAPER ALERT! My paper, with @bjornhoyland.bsky.social , on how “policy loss” shapes support for the EU has just been published in @cpsjournal.bsky.social. Check it out!
1/
1/
Reposted by Joris Frese
Comparing registrations to published papers is essential to research integrity - and almost no one does it routinely because it's slow, messy, and time-demanding.
RegCheck was built to help make this process easier.
Today, we launch RegCheck V2.
🧵
regcheck.app
RegCheck was built to help make this process easier.
Today, we launch RegCheck V2.
🧵
regcheck.app
RegCheck
RegCheck is an AI tool to compare preregistrations with papers instantly.
regcheck.app
January 22, 2026 at 11:05 AM
Comparing registrations to published papers is essential to research integrity - and almost no one does it routinely because it's slow, messy, and time-demanding.
RegCheck was built to help make this process easier.
Today, we launch RegCheck V2.
🧵
regcheck.app
RegCheck was built to help make this process easier.
Today, we launch RegCheck V2.
🧵
regcheck.app
Reposted by Joris Frese
As the Spring semester kicks off, just a reminder that I have collected over 100 datasets that could be of use to undergrads/grads doing their first quant research projects!
sites.google.com/view/drjosep...
sites.google.com/view/drjosep...
Dr. Joseph A. Coll - Political Science Datasets
Introducing the Dataset of Political Science Datasets (DPSD, v1.2)!
This dataset includes information on 100+ datasets, mostly focused on political science but of relevance to related fields (e.g., e...
sites.google.com
January 20, 2026 at 5:33 PM
As the Spring semester kicks off, just a reminder that I have collected over 100 datasets that could be of use to undergrads/grads doing their first quant research projects!
sites.google.com/view/drjosep...
sites.google.com/view/drjosep...
Reposted by Joris Frese
Over 96% of these clearly opposite item pairs are positively correlated on MTurk. In other words, many respondents give similar answers to statements that literally contradict each other.
January 8, 2026 at 8:48 PM
Over 96% of these clearly opposite item pairs are positively correlated on MTurk. In other words, many respondents give similar answers to statements that literally contradict each other.
Reposted by Joris Frese
We're excited to release version 1.0 of the Dynamic Democracy website. It includes updated data on state policy, public opinion, mass ideology, and representation. The website enables you to see how these measures are changing overtime across states and within states.
www.dynamicdemocracy.us
www.dynamicdemocracy.us
January 6, 2026 at 8:58 PM
We're excited to release version 1.0 of the Dynamic Democracy website. It includes updated data on state policy, public opinion, mass ideology, and representation. The website enables you to see how these measures are changing overtime across states and within states.
www.dynamicdemocracy.us
www.dynamicdemocracy.us
Super cool (free) resource.
112 Trump voters vs. 1243 Harris voters in my neighborhood ⬇️
112 Trump voters vs. 1243 Harris voters in my neighborhood ⬇️
January 6, 2026 at 7:50 PM
Super cool (free) resource.
112 Trump voters vs. 1243 Harris voters in my neighborhood ⬇️
112 Trump voters vs. 1243 Harris voters in my neighborhood ⬇️
Reposted by Joris Frese
🇪🇺🇩🇪 Published Today in @bjpols.bsky.social 🇮🇹🇫🇷
How a voting advice application affected voting behavior in three large-scale field experiments:
shorturl.at/2ekBj
TLDR of our study (with @simonhix.bsky.social & @rlachat.bsky.social) below 👇 1/14
How a voting advice application affected voting behavior in three large-scale field experiments:
shorturl.at/2ekBj
TLDR of our study (with @simonhix.bsky.social & @rlachat.bsky.social) below 👇 1/14
December 18, 2025 at 11:41 AM
🇪🇺🇩🇪 Published Today in @bjpols.bsky.social 🇮🇹🇫🇷
How a voting advice application affected voting behavior in three large-scale field experiments:
shorturl.at/2ekBj
TLDR of our study (with @simonhix.bsky.social & @rlachat.bsky.social) below 👇 1/14
How a voting advice application affected voting behavior in three large-scale field experiments:
shorturl.at/2ekBj
TLDR of our study (with @simonhix.bsky.social & @rlachat.bsky.social) below 👇 1/14
🇪🇺🇩🇪 Published Today in @bjpols.bsky.social 🇮🇹🇫🇷
How a voting advice application affected voting behavior in three large-scale field experiments:
shorturl.at/2ekBj
TLDR of our study (with @simonhix.bsky.social & @rlachat.bsky.social) below 👇 1/14
How a voting advice application affected voting behavior in three large-scale field experiments:
shorturl.at/2ekBj
TLDR of our study (with @simonhix.bsky.social & @rlachat.bsky.social) below 👇 1/14
December 18, 2025 at 11:41 AM
🇪🇺🇩🇪 Published Today in @bjpols.bsky.social 🇮🇹🇫🇷
How a voting advice application affected voting behavior in three large-scale field experiments:
shorturl.at/2ekBj
TLDR of our study (with @simonhix.bsky.social & @rlachat.bsky.social) below 👇 1/14
How a voting advice application affected voting behavior in three large-scale field experiments:
shorturl.at/2ekBj
TLDR of our study (with @simonhix.bsky.social & @rlachat.bsky.social) below 👇 1/14
Reposted by Joris Frese
It has been a while since @flavioazevedo.bsky.social asked me to take over the Reversals project at @forrt.bsky.social...
It has since evolved beyond my wildest dreams, mostly thanks to @aufdroeseler.bsky.social & @lukaswallrich.bsky.social.
We are very proud of the Replication Hub & Database ♥️
It has since evolved beyond my wildest dreams, mostly thanks to @aufdroeseler.bsky.social & @lukaswallrich.bsky.social.
We are very proud of the Replication Hub & Database ♥️
December 3, 2025 at 6:06 PM
It has been a while since @flavioazevedo.bsky.social asked me to take over the Reversals project at @forrt.bsky.social...
It has since evolved beyond my wildest dreams, mostly thanks to @aufdroeseler.bsky.social & @lukaswallrich.bsky.social.
We are very proud of the Replication Hub & Database ♥️
It has since evolved beyond my wildest dreams, mostly thanks to @aufdroeseler.bsky.social & @lukaswallrich.bsky.social.
We are very proud of the Replication Hub & Database ♥️
Reposted by Joris Frese
🚨NEW WORKING PAPER🚨 Why are many Latino immigrants *not* naturalizing, learning English, and participating in American politics? We provide new theory and evidence across 3 surveys and an instrumental variables approach to show how migration motives shape immigrant integration. tinyurl.com/3expvu8e
December 12, 2025 at 9:11 PM
🚨NEW WORKING PAPER🚨 Why are many Latino immigrants *not* naturalizing, learning English, and participating in American politics? We provide new theory and evidence across 3 surveys and an instrumental variables approach to show how migration motives shape immigrant integration. tinyurl.com/3expvu8e
Reposted by Joris Frese
After 3 years and 5,322 emails (and counting) our Encyclopedia of Political Communication is finally out at @elgarpublishing.bsky.social
📚 Three volumes
⭐ 431 entries
🎓 581 wonderful authors from across the world
A very short 🧵
📚 Three volumes
⭐ 431 entries
🎓 581 wonderful authors from across the world
A very short 🧵
December 10, 2025 at 4:05 PM
After 3 years and 5,322 emails (and counting) our Encyclopedia of Political Communication is finally out at @elgarpublishing.bsky.social
📚 Three volumes
⭐ 431 entries
🎓 581 wonderful authors from across the world
A very short 🧵
📚 Three volumes
⭐ 431 entries
🎓 581 wonderful authors from across the world
A very short 🧵
The core thesis of our Brextinction paper, beautifully (or morbidly?) summarized in one flowchart (also based on YouGov data).
@simonhix.bsky.social @juhoharkonen.bsky.social
ejpr.onlinelibrary.wiley.com/doi/10.1111/...
@simonhix.bsky.social @juhoharkonen.bsky.social
ejpr.onlinelibrary.wiley.com/doi/10.1111/...
Absolutely amazing chart from @peterkellner.bsky.social's piece in @thenewworldmag.bsky.social today:
www.thenewworld.co.uk/peter-kellne...
www.thenewworld.co.uk/peter-kellne...
December 10, 2025 at 1:45 PM
The core thesis of our Brextinction paper, beautifully (or morbidly?) summarized in one flowchart (also based on YouGov data).
@simonhix.bsky.social @juhoharkonen.bsky.social
ejpr.onlinelibrary.wiley.com/doi/10.1111/...
@simonhix.bsky.social @juhoharkonen.bsky.social
ejpr.onlinelibrary.wiley.com/doi/10.1111/...
A well-deserved recognition and an example of how simple the improvement of science can be at times: one small policy change will disincentivize fraud and plagiarism at scale in the country with the 3rd-highest number of retractions in the world (depends of course on the quality of implementation).
Achal Agrawal is on Nature’s list of 10 people who shaped science in 2025. His work helped change India’s university rankings system to include a penalty for large number of retractions.
www.nature.com/articles/d41...
www.nature.com/articles/d41...
This science sleuth revealed a retraction crisis at Indian universities
Achal Agrawal is part of Nature’s 10, a list of people who shaped science in 2025.
www.nature.com
December 9, 2025 at 8:11 PM
A well-deserved recognition and an example of how simple the improvement of science can be at times: one small policy change will disincentivize fraud and plagiarism at scale in the country with the 3rd-highest number of retractions in the world (depends of course on the quality of implementation).
Reposted by Joris Frese
This is a UESD just waiting to happen (get on it @fresejoris.bsky.social!)
www.theguardian.com/australia-ne...
www.theguardian.com/australia-ne...
Australia’s world-first social media ban begins as millions of children and teens lose access to accounts
Accounts held by users under 16 must be removed on apps that include TikTok, Facebook, Instagram, X, YouTube, Snapchat, Reddit, Kick, Twitch and Threads under ban
www.theguardian.com
December 9, 2025 at 5:03 PM
This is a UESD just waiting to happen (get on it @fresejoris.bsky.social!)
www.theguardian.com/australia-ne...
www.theguardian.com/australia-ne...
Reposted by Joris Frese
New paper in @ajpseditor.bsky.social. Is descriptive representation good for substantive representation? Why do voters stay loyal to corrupt and poorly governing ethnic parties? I argue that we ought to focus less on patronage and more on dignity concerns. Defiant pride can come at a price. 1/🧵
December 8, 2025 at 10:01 PM
New paper in @ajpseditor.bsky.social. Is descriptive representation good for substantive representation? Why do voters stay loyal to corrupt and poorly governing ethnic parties? I argue that we ought to focus less on patronage and more on dignity concerns. Defiant pride can come at a price. 1/🧵
Reposted by Joris Frese
Happy Thanksgiving everyone!
November 27, 2025 at 6:25 AM
Happy Thanksgiving everyone!
As someone studying unexpected events of all kinds, this was a funny (and unexpected) paper to randomly stumble upon: the presence of a man in a batman costume on a train makes passengers significantly more likely to stand up for a pregnant woman: www.nature.com/articles/s44... Good to know I guess.
November 22, 2025 at 7:38 PM
As someone studying unexpected events of all kinds, this was a funny (and unexpected) paper to randomly stumble upon: the presence of a man in a batman costume on a train makes passengers significantly more likely to stand up for a pregnant woman: www.nature.com/articles/s44... Good to know I guess.