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Cornelius Erfort

@cornelius-erfort

PostDoc in Witten. Political behavior and quant methods ­-- corneliuserfort.de

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11.10.2023
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Latest posts by Cornelius Erfort @cornelius-erfort

PARTYPRESS 2.0 – coming soon

And there is more: @zachdickson.bsky.social and I are currently working on a major extension of PARTYPRESS. Stay tuned 👀 partypress.org

05.03.2026 09:48 👍 4 🔁 0 💬 0 📌 0
Sage Journals: Discover world-class research Subscription and open access journals from Sage, the world's leading independent academic publisher.

The paper is based on our PARTYPRESS dataset covering party press releases including issue labels for each text. doi.org/10.1177/2053...

05.03.2026 09:48 👍 0 🔁 0 💬 1 📌 0

Really excited to see my final dissertation paper out 🎉

Do parties shift their issue priorities when polls decline?

Looking at press releases from 68 parties in 9 countries, we find little evidence that they do.

05.03.2026 09:48 👍 27 🔁 5 💬 1 📌 0

Thanks so much for the invitation. I really enjoyed the workshop.

Big thanks to @zachdickson.bsky.social and @antvalentim.bsky.social for putting it together!

02.03.2026 10:23 👍 4 🔁 0 💬 0 📌 0
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🗳️ Neue Prognose: Landtagswahlen in Baden-Württemberg (8. März) und Rheinland-Pfalz (22. März)

BW: Kopf-an-Kopf CDU vs. Grüne. RP: CDU und SPD fast gleichauf.

Unsere Modellvorhersage mit 5/6-Kredibilitätsintervallen und Szenario-Wahrscheinlichkeiten 👇

zweitstimme.org/posts/blog/f...

02.03.2026 10:21 👍 25 🔁 7 💬 1 📌 1

Day 1 wrapped up, excited for tomorrow 🤗

20.11.2025 20:31 👍 10 🔁 1 💬 0 📌 0
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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

07.11.2025 07:54 👍 25 🔁 11 💬 1 📌 4
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.

🚨 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...

31.10.2025 14:00 👍 88 🔁 59 💬 0 📌 4

Very much looking forward to presenting recent experimental findings on voters’ perceptions of election polls @mzes-ssdl.bsky.social (@mzesunimannheim.bsky.social) next week!

29.10.2025 11:56 👍 12 🔁 3 💬 1 📌 0
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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...

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/...

30.09.2025 16:44 👍 51 🔁 16 💬 1 📌 0

💥 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

17.09.2025 06:28 👍 37 🔁 9 💬 0 📌 0

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.

03.09.2025 08:01 👍 17 🔁 3 💬 0 📌 0

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 🧵

07.08.2025 16:28 👍 183 🔁 145 💬 1 📌 14
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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:

01.08.2025 13:41 👍 99 🔁 29 💬 3 📌 2
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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…

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:

25.07.2025 09:08 👍 62 🔁 19 💬 1 📌 0
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📣 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

09.07.2025 16:41 👍 96 🔁 77 💬 2 📌 5
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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".

05.07.2025 15:27 👍 40 🔁 27 💬 2 📌 6
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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

26.06.2025 07:14 👍 41 🔁 10 💬 1 📌 2
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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

26.06.2025 08:00 👍 24 🔁 8 💬 0 📌 1

That’s #EPSA2025 of course 😅

26.06.2025 11:39 👍 4 🔁 0 💬 1 📌 0
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GitHub - cornelius-erfort/epsa-2025 Contribute to cornelius-erfort/epsa-2025 development by creating an account on GitHub.

Code and data are here: github.com/cornelius-er...

26.06.2025 09:40 👍 7 🔁 0 💬 1 📌 0
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And last but not least, there is an overall imbalance by gender (about 60/40), but with variation across institutions.

26.06.2025 09:38 👍 13 🔁 3 💬 1 📌 1
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There is also an interactive map on affiliations here: corneliuserfort.de/files/epsa20... (And yes, @gessler.bsky.social, the Viadrina is included in the maps this year!)

26.06.2025 09:38 👍 10 🔁 0 💬 1 📌 0
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And a closer look at Europe

26.06.2025 09:38 👍 10 🔁 0 💬 1 📌 1
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How are the affiliations spread out on the map?

26.06.2025 09:38 👍 8 🔁 0 💬 1 📌 0
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This year's top individual contributors are @heikekluever.bsky.social and @tonirodon.bsky.social 🎉

26.06.2025 09:38 👍 12 🔁 0 💬 1 📌 1
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In the top affiliations, we see some changes with Gothenburg gaining momentum, and the LSE losing its first place from last year. Happy to see Humboldt making it into the top 10!

(All figures are based on the number of (co-)authorships.)

26.06.2025 09:38 👍 19 🔁 3 💬 2 📌 0
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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 🧵

26.06.2025 09:38 👍 69 🔁 23 💬 2 📌 0

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 🤗

20.05.2025 09:12 👍 13 🔁 4 💬 0 📌 0
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And this tailoring likely isn’t just about gender.

👵👩👧 The way parties feature different age groups is also linked to the audience age—suggesting broader patterns in ad strategy.

03.04.2025 19:20 👍 2 🔁 0 💬 0 📌 0