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
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.
Reposted by Joris Frese
📢 CALL FOR PAPERS!
We’re looking for presenters for the upcoming term (early January to mid-June 2026).
If you’d like to present, please fill out the form here: forms.gle/wdq27WcDLC7i...
🗓 Deadline for proposals: December 15
We’re looking for presenters for the upcoming term (early January to mid-June 2026).
If you’d like to present, please fill out the form here: forms.gle/wdq27WcDLC7i...
🗓 Deadline for proposals: December 15
EUI Political Behaviour Colloquium
Please fill in the details below to submit your proposal.
Kindly provide the title and abstract of your paper, as well as your availability to present. The Colloquium is held every Tuesday from 17:00 ...
forms.gle
November 17, 2025 at 8:48 AM
📢 CALL FOR PAPERS!
We’re looking for presenters for the upcoming term (early January to mid-June 2026).
If you’d like to present, please fill out the form here: forms.gle/wdq27WcDLC7i...
🗓 Deadline for proposals: December 15
We’re looking for presenters for the upcoming term (early January to mid-June 2026).
If you’d like to present, please fill out the form here: forms.gle/wdq27WcDLC7i...
🗓 Deadline for proposals: December 15
A question I have also contemplated at times: would quantitative researchers make good quantitative traders? Some answers in Lauren's great blog 👇
I did that thing where I say, “I’m just going to explore this quickly,” and suddenly - as a complete non-expert - I’ve built a simple stock-trading algorithm.
I wrote up the whole experience and what I learned (and I promise the explanations are very lightweight):
open.substack.com/pub/laurenle...
I wrote up the whole experience and what I learned (and I promise the explanations are very lightweight):
open.substack.com/pub/laurenle...
How Hard Can Quant Trading Really Be? I Tried It to Find Out.
Hedge funds have armies of PhDs, Bloomberg terminals, and million-dollar data feeds. I have Python open in VS Code - and a PhD in political economy. How much can I reproduce on my laptop?
open.substack.com
November 13, 2025 at 2:53 PM
A question I have also contemplated at times: would quantitative researchers make good quantitative traders? Some answers in Lauren's great blog 👇
Reposted by Joris Frese
Nano-targeting or mass appeal, what makes persuasive climate communications?
@miriamsorace.bsky.social @lsedatascience.bsky.social, Thomas Robinson @lsemethodology.bsky.social, @simonhix.bsky.social @epssnet.bsky.social and @fresejoris.bsky.social @eui-eu.bsky.social for @lseimpactblog.bsky.social
@miriamsorace.bsky.social @lsedatascience.bsky.social, Thomas Robinson @lsemethodology.bsky.social, @simonhix.bsky.social @epssnet.bsky.social and @fresejoris.bsky.social @eui-eu.bsky.social for @lseimpactblog.bsky.social
Nano-targeting or mass appeal, what makes persuasive climate communications? - Impact of Social Sciences
Are nano-targeting tools capable of creating more persuasive climate communications, or broad appeal messages still the best way to move audiences on climate?
blogs.lse.ac.uk
November 12, 2025 at 11:41 AM
Nano-targeting or mass appeal, what makes persuasive climate communications?
@miriamsorace.bsky.social @lsedatascience.bsky.social, Thomas Robinson @lsemethodology.bsky.social, @simonhix.bsky.social @epssnet.bsky.social and @fresejoris.bsky.social @eui-eu.bsky.social for @lseimpactblog.bsky.social
@miriamsorace.bsky.social @lsedatascience.bsky.social, Thomas Robinson @lsemethodology.bsky.social, @simonhix.bsky.social @epssnet.bsky.social and @fresejoris.bsky.social @eui-eu.bsky.social for @lseimpactblog.bsky.social
Reposted by Joris Frese
💥New: Nano-targeting or mass appeal, what makes persuasive climate communications?
✍️ @miriamsorace.bsky.social,Thomas Robinson, @simonhix.bsky.social & @fresejoris.bsky.social
#COP30 #ClimateComms #NanoTargeting
✍️ @miriamsorace.bsky.social,Thomas Robinson, @simonhix.bsky.social & @fresejoris.bsky.social
#COP30 #ClimateComms #NanoTargeting
Nano-targeting or mass appeal, what makes persuasive climate communications? - Impact of Social Sciences
Are nano-targeting tools capable of creating more persuasive climate communications, or broad appeal messages still the best way to move audiences on climate?
blogs.lse.ac.uk
November 10, 2025 at 10:59 AM
💥New: Nano-targeting or mass appeal, what makes persuasive climate communications?
✍️ @miriamsorace.bsky.social,Thomas Robinson, @simonhix.bsky.social & @fresejoris.bsky.social
#COP30 #ClimateComms #NanoTargeting
✍️ @miriamsorace.bsky.social,Thomas Robinson, @simonhix.bsky.social & @fresejoris.bsky.social
#COP30 #ClimateComms #NanoTargeting
Reposted by Joris Frese
📄 New WP version out - full overhaul!
The Politics of Evidence Selection (w/ @jesperasring.bsky.social )
Comments welcome!
🔗 osf.io/preprints/so...
The Politics of Evidence Selection (w/ @jesperasring.bsky.social )
Comments welcome!
🔗 osf.io/preprints/so...
November 6, 2025 at 3:30 PM
📄 New WP version out - full overhaul!
The Politics of Evidence Selection (w/ @jesperasring.bsky.social )
Comments welcome!
🔗 osf.io/preprints/so...
The Politics of Evidence Selection (w/ @jesperasring.bsky.social )
Comments welcome!
🔗 osf.io/preprints/so...
Delighted to be visiting Harvard's Department of Government as a Fellow. Loving the free food at most seminars here (EUI take note)! I have an office at the CGIS during the Fall and Spring Semester, so if you are around and would like to talk about research or play a game of chess, let me know 🙂
November 7, 2025 at 1:10 PM
Delighted to be visiting Harvard's Department of Government as a Fellow. Loving the free food at most seminars here (EUI take note)! I have an office at the CGIS during the Fall and Spring Semester, so if you are around and would like to talk about research or play a game of chess, let me know 🙂
Reposted by Joris Frese
"While high-quality content is posted more and receives more total engagement across platforms...a given author attracts higher levels of engagement when they post lower-quality content"
"pattern we find seems to be driven more by an underperformance of particularly popular high-quality outlets"
"pattern we find seems to be driven more by an underperformance of particularly popular high-quality outlets"
Divergent patterns of engagement with partisan and low-quality news across seven social media platforms | PNAS
In recent years, social media has become increasingly fragmented, as platforms evolve
and new alternatives emerge. Yet most research studies a sing...
www.pnas.org
November 5, 2025 at 3:47 PM
"While high-quality content is posted more and receives more total engagement across platforms...a given author attracts higher levels of engagement when they post lower-quality content"
"pattern we find seems to be driven more by an underperformance of particularly popular high-quality outlets"
"pattern we find seems to be driven more by an underperformance of particularly popular high-quality outlets"
Reposted by Joris Frese
New paper with @mhamjediers.bsky.social
German judges have discretion to apply rehabilitative juvenile criminal law (Jugendstrafrecht) or punitive adult criminal law to 18–20-year-old offenders. We show that immigrant youths are ~10 percentage points less likely to be sentenced under juvenile law
German judges have discretion to apply rehabilitative juvenile criminal law (Jugendstrafrecht) or punitive adult criminal law to 18–20-year-old offenders. We show that immigrant youths are ~10 percentage points less likely to be sentenced under juvenile law
NEW -
Anti-Immigrant Bias in the Choice Between Punitive and Rehabilitative Justice - https://cup.org/49vUfVa
- @riazsascha.bsky.social & @mhamjediers.bsky.social
#OpenAccess
Anti-Immigrant Bias in the Choice Between Punitive and Rehabilitative Justice - https://cup.org/49vUfVa
- @riazsascha.bsky.social & @mhamjediers.bsky.social
#OpenAccess
November 4, 2025 at 11:20 AM
New paper with @mhamjediers.bsky.social
German judges have discretion to apply rehabilitative juvenile criminal law (Jugendstrafrecht) or punitive adult criminal law to 18–20-year-old offenders. We show that immigrant youths are ~10 percentage points less likely to be sentenced under juvenile law
German judges have discretion to apply rehabilitative juvenile criminal law (Jugendstrafrecht) or punitive adult criminal law to 18–20-year-old offenders. We show that immigrant youths are ~10 percentage points less likely to be sentenced under juvenile law
Reposted by Joris Frese
Cool new working paper on why and how cable news threw gasoline on the culture war fire. The culture war isn't optimal for electoral candidates, but it's optimal for cable news companies.
ungated: www.dropbox.com/scl/fi/27v4x...
ungated: www.dropbox.com/scl/fi/27v4x...
November 3, 2025 at 7:45 PM
Cool new working paper on why and how cable news threw gasoline on the culture war fire. The culture war isn't optimal for electoral candidates, but it's optimal for cable news companies.
ungated: www.dropbox.com/scl/fi/27v4x...
ungated: www.dropbox.com/scl/fi/27v4x...
Reposted by Joris Frese
The analysis you've been waiting for: "Do you remember who was actually president when that happened?" Turns out the answer is often...no.
1 in 3 forgot Trump was in office on Jan. 6.
HALF didn't say Biden was President during the Afghanistan withdrawal!
yougovamerica.substack.com/p/how-many-a...
1 in 3 forgot Trump was in office on Jan. 6.
HALF didn't say Biden was President during the Afghanistan withdrawal!
yougovamerica.substack.com/p/how-many-a...
October 31, 2025 at 7:27 PM
The analysis you've been waiting for: "Do you remember who was actually president when that happened?" Turns out the answer is often...no.
1 in 3 forgot Trump was in office on Jan. 6.
HALF didn't say Biden was President during the Afghanistan withdrawal!
yougovamerica.substack.com/p/how-many-a...
1 in 3 forgot Trump was in office on Jan. 6.
HALF didn't say Biden was President during the Afghanistan withdrawal!
yougovamerica.substack.com/p/how-many-a...
Reposted by Joris Frese
We have just advertised a Full Prof position in the Political and Social Sciences department at the EUI (@eui-sps.bsky.social). Here are the details. Please spread the word, and get in touch if you have any questions.
www.eui.eu/Documents/Se...
www.eui.eu/Documents/Se...
www.eui.eu
October 23, 2025 at 2:03 PM
We have just advertised a Full Prof position in the Political and Social Sciences department at the EUI (@eui-sps.bsky.social). Here are the details. Please spread the word, and get in touch if you have any questions.
www.eui.eu/Documents/Se...
www.eui.eu/Documents/Se...
Reposted by Joris Frese
Check out Miriam's great thread on our new nano-targeting paper below. One of the most innovative projects I ever had the privilege of contributing to!
October 16, 2025 at 8:08 AM
Check out Miriam's great thread on our new nano-targeting paper below. One of the most innovative projects I ever had the privilege of contributing to!
Reposted by Joris Frese
I had the pleasure of reading this draft paper at a recent workshop, and it's a great contribution. Do check it out 👇
Nano-targeting is not a persuasive weapon: it is a dissuasion and polarization weapon. New paper out osf.io/preprints/so... with the brilliant Thomas Robinson, @simonhix.bsky.social and @fresejoris.bsky.social – the first to quantify the perverse incentives/inherent democratic dangers of this tech.
OSF
osf.io
October 16, 2025 at 8:28 AM
I had the pleasure of reading this draft paper at a recent workshop, and it's a great contribution. Do check it out 👇
Check out Miriam's great thread on our new nano-targeting paper below. One of the most innovative projects I ever had the privilege of contributing to!
October 16, 2025 at 8:08 AM
Check out Miriam's great thread on our new nano-targeting paper below. One of the most innovative projects I ever had the privilege of contributing to!
Reposted by Joris Frese
🚨 out at @apsrjournal.bsky.social 🚨
➡️ We ran a large media literacy experiment to fight misinformation
➡️ 13,500 students, 583 villages in Bihar, India
➡️Created custom misinfo curriculum of 4 months
➡️Partnered w the government to roll it out as an official course in classrooms
hopeful findings👇🏽
➡️ We ran a large media literacy experiment to fight misinformation
➡️ 13,500 students, 583 villages in Bihar, India
➡️Created custom misinfo curriculum of 4 months
➡️Partnered w the government to roll it out as an official course in classrooms
hopeful findings👇🏽
October 15, 2025 at 3:33 PM
🚨 out at @apsrjournal.bsky.social 🚨
➡️ We ran a large media literacy experiment to fight misinformation
➡️ 13,500 students, 583 villages in Bihar, India
➡️Created custom misinfo curriculum of 4 months
➡️Partnered w the government to roll it out as an official course in classrooms
hopeful findings👇🏽
➡️ We ran a large media literacy experiment to fight misinformation
➡️ 13,500 students, 583 villages in Bihar, India
➡️Created custom misinfo curriculum of 4 months
➡️Partnered w the government to roll it out as an official course in classrooms
hopeful findings👇🏽
Reposted by Joris Frese
This is a highly interesting, timely and great initiative - a new diamond OA journal for #replication research! It is interdisciplinary, but #PolSci is specifically invited. Hence, if you or someone you know has an interesting replication paper, do not hesitate to submit!
ReplicationResearch.org is now open for submissions!
Submit replications and reproductions from many different fields, as well as conceptual contributions. With diamond OA, open and citable peer review reports, and reproducibility checks, we push the boundaries of open and fair publishing.
Submit replications and reproductions from many different fields, as well as conceptual contributions. With diamond OA, open and citable peer review reports, and reproducibility checks, we push the boundaries of open and fair publishing.
October 10, 2025 at 6:25 AM
This is a highly interesting, timely and great initiative - a new diamond OA journal for #replication research! It is interdisciplinary, but #PolSci is specifically invited. Hence, if you or someone you know has an interesting replication paper, do not hesitate to submit!
Reposted by Joris Frese
💥 Do candidates’ hobbies on social media influence hiring?
New study w. @fresejoris.bsky.social finds no overall effect of “high-class vs. low-class” activities. But when hobbies signal class without clear job relevance, higher-class candidates are favored.
www.sciencedirect.com/science/arti...
New study w. @fresejoris.bsky.social finds no overall effect of “high-class vs. low-class” activities. But when hobbies signal class without clear job relevance, higher-class candidates are favored.
www.sciencedirect.com/science/arti...
Online social class cues and employability: Experimental evidence from Germany
Social media platforms, such as Twitter or Instagram, offer easily accessible information – relevant or not – for employers when evaluating candidates…
www.sciencedirect.com
October 9, 2025 at 8:28 AM
💥 Do candidates’ hobbies on social media influence hiring?
New study w. @fresejoris.bsky.social finds no overall effect of “high-class vs. low-class” activities. But when hobbies signal class without clear job relevance, higher-class candidates are favored.
www.sciencedirect.com/science/arti...
New study w. @fresejoris.bsky.social finds no overall effect of “high-class vs. low-class” activities. But when hobbies signal class without clear job relevance, higher-class candidates are favored.
www.sciencedirect.com/science/arti...
Reposted by Joris Frese
How common are “survey professionals” - people who take dozens of online surveys for pay - across online panels, and do they harm data quality?
Our paper, FirstView at @politicalanalysis.bsky.social, tackles this question using browsing data from three U.S. samples (Facebook, YouGov, and Lucid):
Our paper, FirstView at @politicalanalysis.bsky.social, tackles this question using browsing data from three U.S. samples (Facebook, YouGov, and Lucid):
October 7, 2025 at 6:49 PM
How common are “survey professionals” - people who take dozens of online surveys for pay - across online panels, and do they harm data quality?
Our paper, FirstView at @politicalanalysis.bsky.social, tackles this question using browsing data from three U.S. samples (Facebook, YouGov, and Lucid):
Our paper, FirstView at @politicalanalysis.bsky.social, tackles this question using browsing data from three U.S. samples (Facebook, YouGov, and Lucid):
Reposted by Joris Frese
Work from Diana Roxana Galos and @fresejoris.bsky.social examines online social class cues and employability. This article is open access here: www.sciencedirect.com/science/arti...
October 6, 2025 at 7:39 PM
Work from Diana Roxana Galos and @fresejoris.bsky.social examines online social class cues and employability. This article is open access here: www.sciencedirect.com/science/arti...
Reposted by Joris Frese
Brextinction!
From our student @fresejoris.bsky.social and colleagues @juhoharkonen.bsky.social @simonhix.bsky.social
ejpr.onlinelibrary.wiley.com/doi/10.1111/...
From our student @fresejoris.bsky.social and colleagues @juhoharkonen.bsky.social @simonhix.bsky.social
ejpr.onlinelibrary.wiley.com/doi/10.1111/...
Brextinction? How cohort replacement has transformed support for Brexit
Public support for Brexit has declined since the 2016 referendum. We argue that part of this decline is due to cohort replacement where many older voters (who support Brexit) have passed away, while ...
ejpr.onlinelibrary.wiley.com
September 16, 2025 at 4:35 AM
Brextinction!
From our student @fresejoris.bsky.social and colleagues @juhoharkonen.bsky.social @simonhix.bsky.social
ejpr.onlinelibrary.wiley.com/doi/10.1111/...
From our student @fresejoris.bsky.social and colleagues @juhoharkonen.bsky.social @simonhix.bsky.social
ejpr.onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Joris Frese
Sentiment analysis on four decades worth of FT newspaper articles. 🥳 Rreally cool stuff from @joelsuss.ft.com. on.ft.com/4n2TVBq
September 9, 2025 at 5:49 PM
Sentiment analysis on four decades worth of FT newspaper articles. 🥳 Rreally cool stuff from @joelsuss.ft.com. on.ft.com/4n2TVBq
Reposted by Joris Frese
Reposted by Joris Frese
🚨DATA RELEASE 🚨
The BES team are pleased to announce the release of Wave 30 of the British Election Study Internet Panel.
Please follow the link below, and we look forward to seeing your research!
www.britishelectionstudy.com/bes-resource...
The BES team are pleased to announce the release of Wave 30 of the British Election Study Internet Panel.
Please follow the link below, and we look forward to seeing your research!
www.britishelectionstudy.com/bes-resource...
Release Note: British Election Study Internet Panel Wave 30 - The British Election Study
www.britishelectionstudy.com
September 6, 2025 at 1:21 PM
🚨DATA RELEASE 🚨
The BES team are pleased to announce the release of Wave 30 of the British Election Study Internet Panel.
Please follow the link below, and we look forward to seeing your research!
www.britishelectionstudy.com/bes-resource...
The BES team are pleased to announce the release of Wave 30 of the British Election Study Internet Panel.
Please follow the link below, and we look forward to seeing your research!
www.britishelectionstudy.com/bes-resource...
This thread is a great takedown of a recent paper published in one of the top neurology journals. More evidence to bolster my impression that there is a LOT of really weak nutrition science out there getting disproportionate amounts of (uncritical) media coverage.
"Sweeteners can harm cognitive health equivalent to 1.6 years of ageing, study finds"
Or does it? Let's take a look at this "study"...
www.theguardian.com/food/2025/se...
Or does it? Let's take a look at this "study"...
www.theguardian.com/food/2025/se...
Sweeteners can harm cognitive health equivalent to 1.6 years of ageing, study finds
Researchers say low- and no-calorie sweeteners appear to affect thinking and memory in middle age
www.theguardian.com
September 5, 2025 at 5:25 PM
This thread is a great takedown of a recent paper published in one of the top neurology journals. More evidence to bolster my impression that there is a LOT of really weak nutrition science out there getting disproportionate amounts of (uncritical) media coverage.