Cornelius Erfort
@cornelius-erfort.bsky.social
PostDoc in Witten. Political behavior and quant. methods. corneliuserfort.de
Pinned
How do parties tailor their campaign ads to women? 🗳️👩
Excited to share that my paper on how parties adapt their ads is out now at @thejop.bsky.social!
📖 Read it here: www.journals.uchicago.edu/doi/10.1086/...
A quick breakdown of the findings ⬇️🧵
Excited to share that my paper on how parties adapt their ads is out now at @thejop.bsky.social!
📖 Read it here: www.journals.uchicago.edu/doi/10.1086/...
A quick breakdown of the findings ⬇️🧵
Day 1 wrapped up, excited for tomorrow 🤗
🎉 Kicking off the Zweitstimme.org Workshop!
We’re looking forward to two days discussing new work on Elections, Public Opinion & Elite Behaviour.
Today’s sessions:
👉 Panel I – Elites
👉 Panel II – Participation
👉 Panel III – Party Strategies
Huge thanks to @hertieschool.bsky.social for hosting us!
We’re looking forward to two days discussing new work on Elections, Public Opinion & Elite Behaviour.
Today’s sessions:
👉 Panel I – Elites
👉 Panel II – Participation
👉 Panel III – Party Strategies
Huge thanks to @hertieschool.bsky.social for hosting us!
November 20, 2025 at 8:31 PM
Day 1 wrapped up, excited for tomorrow 🤗
Reposted by Cornelius Erfort
More and more young people are turning to the far right. Why and what can we do about it?
Join our #COVIDEU Workshop on Nov 21 (2–5 PM) to discuss causes and counter-strategies.
🚀 Hosted by @humboldt-govlab.bsky.social
💡 Funded by @volkswagenstiftung.de
👉 Register: tinyurl.com/bdenyfnw
Join our #COVIDEU Workshop on Nov 21 (2–5 PM) to discuss causes and counter-strategies.
🚀 Hosted by @humboldt-govlab.bsky.social
💡 Funded by @volkswagenstiftung.de
👉 Register: tinyurl.com/bdenyfnw
November 7, 2025 at 7:54 AM
More and more young people are turning to the far right. Why and what can we do about it?
Join our #COVIDEU Workshop on Nov 21 (2–5 PM) to discuss causes and counter-strategies.
🚀 Hosted by @humboldt-govlab.bsky.social
💡 Funded by @volkswagenstiftung.de
👉 Register: tinyurl.com/bdenyfnw
Join our #COVIDEU Workshop on Nov 21 (2–5 PM) to discuss causes and counter-strategies.
🚀 Hosted by @humboldt-govlab.bsky.social
💡 Funded by @volkswagenstiftung.de
👉 Register: tinyurl.com/bdenyfnw
Reposted by Cornelius Erfort
🚨 EPSS Belfast 2026 Call for Papers - One week to go! 🚨
Don't forget to submit your paper or panel proposal to the European Political Science Society @epssnet.bsky.social 2026 conference - just one week to go before the deadline: epssnet.org/belfast-2026...
Don't forget to submit your paper or panel proposal to the European Political Science Society @epssnet.bsky.social 2026 conference - just one week to go before the deadline: epssnet.org/belfast-2026...
Call for Papers | EPSS Belfast 2026 Conference
Submit your abstract or full paper for EPSS Belfast 2026. Share cutting‑edge political science research, network with peers & contribute to academic impact.
epssnet.org
October 31, 2025 at 2:00 PM
🚨 EPSS Belfast 2026 Call for Papers - One week to go! 🚨
Don't forget to submit your paper or panel proposal to the European Political Science Society @epssnet.bsky.social 2026 conference - just one week to go before the deadline: epssnet.org/belfast-2026...
Don't forget to submit your paper or panel proposal to the European Political Science Society @epssnet.bsky.social 2026 conference - just one week to go before the deadline: epssnet.org/belfast-2026...
Reposted by Cornelius Erfort
Very much looking forward to presenting recent experimental findings on voters’ perceptions of election polls @mzes-ssdl.bsky.social (@mzesunimannheim.bsky.social) next week!
🚨 Upcoming: "What Shapes Voter Perceptions of Election Polls? The Impact of Partisanship and Visual Design"
👤 @eliaskoch.bsky.social (Hertie School)
🗓️ Wed, November 5, 13:45-15:15 CET
📺 Register for the live stream: us02web.zoom.us/meeting/regi...
👤 @eliaskoch.bsky.social (Hertie School)
🗓️ Wed, November 5, 13:45-15:15 CET
📺 Register for the live stream: us02web.zoom.us/meeting/regi...
![What Shapes Voter Perceptions of Election Polls? The Impact of Partisanship and Visual Design
Hybrid event [A5, 6, Room A231 + Zoom]
November 05, 2025, 13:45-15:15
Abstract
Election polls are a central feature of modern electoral campaigns, providing voters with information that can guide their decisions. Yet, voters are often confronted with many polls showing volatile or conflicting outcomes, and media outlets present these polls in very different ways. This raises two key questions: (1) How do voters judge the trustworthiness of a poll’s results? and (2) How does the way a poll is presented affect these perceptions? I present experimental evidence from two large-scale studies in Germany. Together, they show that both the content of a poll and the way it is presented influence voter perceptions, offering new insights into how individuals navigate modern campaigns environments.
Presenter(s)
Elias Koch is a Doctoral Researcher at the Research Training Group DYNAMICS (HU Berlin/Hertie School) and a Research Associate at the Hertie School in Berlin. His research explores party competition and political behaviour in established democracies, with a particular focus on shifting public opinion landscapes.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:oizrkjzyr6vekl76tjctghcl/bafkreiea2wek2lsf5fbeqvhbk7bxgtzh6nvd6oodcuvj42nsza6uztkrma@jpeg)
October 29, 2025 at 11:56 AM
Very much looking forward to presenting recent experimental findings on voters’ perceptions of election polls @mzes-ssdl.bsky.social (@mzesunimannheim.bsky.social) next week!
Reposted by Cornelius Erfort
Glad to see this out at @ajpseditor.bsky.social! I show that the immigration-crime issue, when salient, can shift leftist cosmopolitans to the Right. This is due to leftist voters being more conservative on crime than leftist parties.
onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com/doi/10.1111/...
American Journal of Political Science | MPSA Journal | Wiley Online Library
Concern that immigration worsens crime problems is prevalent across Western publics. How does it shape electoral politics? Prior research asserted a growing left–right divide in immigration attitudes...
onlinelibrary.wiley.com
September 30, 2025 at 4:44 PM
Glad to see this out at @ajpseditor.bsky.social! I show that the immigration-crime issue, when salient, can shift leftist cosmopolitans to the Right. This is due to leftist voters being more conservative on crime than leftist parties.
onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Cornelius Erfort
💥 Update! 💥
This paper is now officially published in Volume 30, Issue 4 of The International Journal of Press/Politics! 🗳️
Experimental evidence that voters prefer moderately tailored messages - highly tailored ones can backfire & targeting can be too much: doi.org/10.1177/1940... #IJPP
This paper is now officially published in Volume 30, Issue 4 of The International Journal of Press/Politics! 🗳️
Experimental evidence that voters prefer moderately tailored messages - highly tailored ones can backfire & targeting can be too much: doi.org/10.1177/1940... #IJPP
September 17, 2025 at 6:28 AM
💥 Update! 💥
This paper is now officially published in Volume 30, Issue 4 of The International Journal of Press/Politics! 🗳️
Experimental evidence that voters prefer moderately tailored messages - highly tailored ones can backfire & targeting can be too much: doi.org/10.1177/1940... #IJPP
This paper is now officially published in Volume 30, Issue 4 of The International Journal of Press/Politics! 🗳️
Experimental evidence that voters prefer moderately tailored messages - highly tailored ones can backfire & targeting can be too much: doi.org/10.1177/1940... #IJPP
Reposted by Cornelius Erfort
Looking forward to presenting recent findings on the attitudinal effects of election polls later this term in Mannheim, in part based on joint work w/ @simonsaysnothin.bsky.social, @linushagemann.de, @hannahrajski.bsky.social, Thomas Gschwend, @lstoetze.bsky.social & @cornelius-erfort.bsky.social.
▶️ Social Science Data Lab: Fall 2025 Events
Six input talks by great researchers (see below ⤵️)!
🗓️ Details & Zoom:
socialsciencedatalab.mzes.uni-mannheim.de/page/events/
👥 Organizers:
@rubac.bsky.social,
@denis-cohen.bsky.social and Alexander Wenz
Six input talks by great researchers (see below ⤵️)!
🗓️ Details & Zoom:
socialsciencedatalab.mzes.uni-mannheim.de/page/events/
👥 Organizers:
@rubac.bsky.social,
@denis-cohen.bsky.social and Alexander Wenz
September 3, 2025 at 8:01 AM
Looking forward to presenting recent findings on the attitudinal effects of election polls later this term in Mannheim, in part based on joint work w/ @simonsaysnothin.bsky.social, @linushagemann.de, @hannahrajski.bsky.social, Thomas Gschwend, @lstoetze.bsky.social & @cornelius-erfort.bsky.social.
Reposted by Cornelius Erfort
EPSA have announced that they will hold a conference in July 2026.
😵💫 We understand that there might be some confusion about EPSS and EPSA.
👉🏽 So we thought we would clarify some things.
A short 🧵
😵💫 We understand that there might be some confusion about EPSS and EPSA.
👉🏽 So we thought we would clarify some things.
A short 🧵
August 7, 2025 at 4:28 PM
EPSA have announced that they will hold a conference in July 2026.
😵💫 We understand that there might be some confusion about EPSS and EPSA.
👉🏽 So we thought we would clarify some things.
A short 🧵
😵💫 We understand that there might be some confusion about EPSS and EPSA.
👉🏽 So we thought we would clarify some things.
A short 🧵
Reposted by Cornelius Erfort
New paper out @wepsocial.bsky.social!
🥡 Key Take-Away: Opposition parties seek more conflict with the government when performing poorly in the polls – especially when falling below their previous election result.
Read full 🧵 below:
🥡 Key Take-Away: Opposition parties seek more conflict with the government when performing poorly in the polls – especially when falling below their previous election result.
Read full 🧵 below:
August 1, 2025 at 1:42 PM
New paper out @wepsocial.bsky.social!
🥡 Key Take-Away: Opposition parties seek more conflict with the government when performing poorly in the polls – especially when falling below their previous election result.
Read full 🧵 below:
🥡 Key Take-Away: Opposition parties seek more conflict with the government when performing poorly in the polls – especially when falling below their previous election result.
Read full 🧵 below:
Reposted by Cornelius Erfort
1/ New paper out in Electoral Studies with @heikekluever.bsky.social and @cornelius-erfort.bsky.social
We show that nuclear power plants reduce electoral support for Green parties in Germany.
🔗 www.sciencedirect.com/science/arti...
A thread on the paper:
We show that nuclear power plants reduce electoral support for Green parties in Germany.
🔗 www.sciencedirect.com/science/arti...
A thread on the paper:
How nuclear power hurts the Greens: Evidence from German nuclear power plants
What are the electoral consequences of nuclear energy for Green parties? Despite the centrality of nuclear opposition to Green party platforms, and th…
www.sciencedirect.com
July 25, 2025 at 9:09 AM
1/ New paper out in Electoral Studies with @heikekluever.bsky.social and @cornelius-erfort.bsky.social
We show that nuclear power plants reduce electoral support for Green parties in Germany.
🔗 www.sciencedirect.com/science/arti...
A thread on the paper:
We show that nuclear power plants reduce electoral support for Green parties in Germany.
🔗 www.sciencedirect.com/science/arti...
A thread on the paper:
Reposted by Cornelius Erfort
📣 Call for Applications 📣
3-year Postdoc position in Berlin 🚀
Join our Comparative Political Behavior Group at @humboldtuni.bsky.social & the @humboldt-govlab.bsky.social
Great people, great projects, great city – come work with us!
🗓️ Deadline: 31 July 2025
3-year Postdoc position in Berlin 🚀
Join our Comparative Political Behavior Group at @humboldtuni.bsky.social & the @humboldt-govlab.bsky.social
Great people, great projects, great city – come work with us!
🗓️ Deadline: 31 July 2025
July 9, 2025 at 4:41 PM
📣 Call for Applications 📣
3-year Postdoc position in Berlin 🚀
Join our Comparative Political Behavior Group at @humboldtuni.bsky.social & the @humboldt-govlab.bsky.social
Great people, great projects, great city – come work with us!
🗓️ Deadline: 31 July 2025
3-year Postdoc position in Berlin 🚀
Join our Comparative Political Behavior Group at @humboldtuni.bsky.social & the @humboldt-govlab.bsky.social
Great people, great projects, great city – come work with us!
🗓️ Deadline: 31 July 2025
Reposted by Cornelius Erfort
The Department of Homeland Security has spend over $800k worth of ads on Facebook and Instagram clearly targeted at people with Latin American / Mexican background telling them that "if you are here illegaly we will find you and we will deport you".
July 5, 2025 at 3:27 PM
The Department of Homeland Security has spend over $800k worth of ads on Facebook and Instagram clearly targeted at people with Latin American / Mexican background telling them that "if you are here illegaly we will find you and we will deport you".
Reposted by Cornelius Erfort
Very excited to present my paper with @heikekluever.bsky.social on the consequences of far-right parties in government at #EPSA2025 on Friday!
🗓️ Friday 4:50-6:30
📍 Room 0A.06 | Panel P10-S253
🗓️ Friday 4:50-6:30
📍 Room 0A.06 | Panel P10-S253
June 26, 2025 at 7:14 AM
Very excited to present my paper with @heikekluever.bsky.social on the consequences of far-right parties in government at #EPSA2025 on Friday!
🗓️ Friday 4:50-6:30
📍 Room 0A.06 | Panel P10-S253
🗓️ Friday 4:50-6:30
📍 Room 0A.06 | Panel P10-S253
Reposted by Cornelius Erfort
Are tailored ads in political campaigns as persuasive as conventional wisdom holds? 📢
In joint work w/ @heikekluever.bsky.social we present evidence from a field experiment with the German Greens ahead of the 2024 European Elections calling this into question 🤔
#epsa2025
⏰: Friday, 16:50
📍: 0A.10
In joint work w/ @heikekluever.bsky.social we present evidence from a field experiment with the German Greens ahead of the 2024 European Elections calling this into question 🤔
#epsa2025
⏰: Friday, 16:50
📍: 0A.10
June 26, 2025 at 8:00 AM
Are tailored ads in political campaigns as persuasive as conventional wisdom holds? 📢
In joint work w/ @heikekluever.bsky.social we present evidence from a field experiment with the German Greens ahead of the 2024 European Elections calling this into question 🤔
#epsa2025
⏰: Friday, 16:50
📍: 0A.10
In joint work w/ @heikekluever.bsky.social we present evidence from a field experiment with the German Greens ahead of the 2024 European Elections calling this into question 🤔
#epsa2025
⏰: Friday, 16:50
📍: 0A.10
I took a closer look at the program #EPSA2024 and found some interesting trends – there seem to be more US based scholars than last year 🇺🇸
@epsanet.bsky.social
A thread on this year's authors and affiliations 🧵
@epsanet.bsky.social
A thread on this year's authors and affiliations 🧵
June 26, 2025 at 9:40 AM
I took a closer look at the program #EPSA2024 and found some interesting trends – there seem to be more US based scholars than last year 🇺🇸
@epsanet.bsky.social
A thread on this year's authors and affiliations 🧵
@epsanet.bsky.social
A thread on this year's authors and affiliations 🧵
I'm on my way to Mannheim, looking forward to talk about our forecasting project (zweitstimme.org) with @hannahrajski.bsky.social. Join us at the MZES or online 🤗
May 20, 2025 at 9:12 AM
I'm on my way to Mannheim, looking forward to talk about our forecasting project (zweitstimme.org) with @hannahrajski.bsky.social. Join us at the MZES or online 🤗
How do parties tailor their campaign ads to women? 🗳️👩
Excited to share that my paper on how parties adapt their ads is out now at @thejop.bsky.social!
📖 Read it here: www.journals.uchicago.edu/doi/10.1086/...
A quick breakdown of the findings ⬇️🧵
Excited to share that my paper on how parties adapt their ads is out now at @thejop.bsky.social!
📖 Read it here: www.journals.uchicago.edu/doi/10.1086/...
A quick breakdown of the findings ⬇️🧵
April 3, 2025 at 7:20 PM
How do parties tailor their campaign ads to women? 🗳️👩
Excited to share that my paper on how parties adapt their ads is out now at @thejop.bsky.social!
📖 Read it here: www.journals.uchicago.edu/doi/10.1086/...
A quick breakdown of the findings ⬇️🧵
Excited to share that my paper on how parties adapt their ads is out now at @thejop.bsky.social!
📖 Read it here: www.journals.uchicago.edu/doi/10.1086/...
A quick breakdown of the findings ⬇️🧵
I’m excited to be visiting @LSEGovernment this term. Thanks @sarahobolt.bsky.social for hosting me 🙏 Come say hi for a coffee (or bubble tea) if you’re in London 🤗
October 16, 2023 at 2:23 PM
I’m excited to be visiting @LSEGovernment this term. Thanks @sarahobolt.bsky.social for hosting me 🙏 Come say hi for a coffee (or bubble tea) if you’re in London 🤗