Comparative Study of Electoral Systems (CSES)

📢 Call for Nominations: 2026 #CSES Awards 📢 Recognizing outstanding scholarship using CSES data: 🏆 GESIS Klingemann Prize 📄 David Howell Award We welcome nominations across regions, methods, & career stages. ⌛️Learn more & submit by April 22: cses.org/2026/03/06/2...

📢 New blog from 2025 #CSES Klingemann Prize winners ( @luanarusso.bsky.social & Paula Schulze Brock) How do mainstream parties shape attitudes toward populist radical right parties? 🔗 Read it here: cses.org/2026/03/31/k...

📢 Call for Nominations: 2026 #CSES Awards 📢 Recognizing outstanding scholarship using CSES data: 🏆 GESIS Klingemann Prize 📄 David Howell Award We welcome nominations across regions, methods, & career stages. ⌛️Learn more & submit by April 22: cses.org/2026/03/06/2...

📢Big news! CGD at @vanderbilt.edu is now the U.S. home of the Comparative Study of Election Surveys (@cses.bsky.social). In partnership with @gesis.org, CGD will manage this flagship international collaboration on open, high-quality election data worldwide. tinyurl.com/y28xaxr4

Announcement: The Second Advance Release of the Comparative Study of Electoral Systems (CSES) Module 6 dataset is now available for download! For more information, please see: cses.org/2025/12/16/m...

Do voters strategically attempt to affect the identity of the next prime minister? In a new paper at @ejprjournal.bsky.social, we show they do! Using @cses.bsky.social and German surveys, we find when and how "formateur optimization" is more likely to occur @ortuttnauer.com doi.org/10.1017/S147...

Our cross-national analysis (@cses.bsky.social) shows: when there is uncertainty over which party will lead the next government, voters are more likely to vote for the two largest parties (left figure). This effect diminishes when partisan attachments are especially strong (right figure). 2/4

📣Job alert: we are hiring a PhD candidate in comparative political behavior @sspunil.bsky.social in beautiful Lausanne, Switzerland, to work with data from @cses.bsky.social @nesconsortium.bsky.social and other networks : bit.ly/4mWVrnE Deadline: 9 November. #polisky

Cool use of @cses.bsky.social Module 5 data! 👇

Want to work for CSES, or know someone who does? GESIS (@gesis.org) is hiring a full-time Senior Researcher, based in Germany, in the area of International Electoral Research. The application deadline is August 15, 2025. For more information, see: www.gesis.org/en/institute...

This figure gives a first impression of the combined effect of populism and losing based on the fifth wave of @cses.bsky.social data. 2/5

Using @chesdata.bsky.social and @cses.bsky.social data, we demonstrate the value of our multidimensional approach and its ability to better predict mass partisanship

Energized by a fun and productive @cses.bsky.social PC meeting in Leuven last week, including a super engaging keynote talk by @jatucker.bsky.social which was co-organized by our new Voting & Democracy research group @kuleuvenuniversity.bsky.social!

We're super excited to welcome @jatucker.bsky.social at our brand new research group on Voting & Democracy at KU Leuven on 23 January for a keynote talk. The talk is co-organized with @cses.bsky.social. Do sign up and join us if you're around then!

CSES Announcement - The First Advance Release of CSES Module 6, containing seven election studies, is now available. The dataset and documentation may be downloaded from the CSES website for free. For more information please visit: cses.org/2024/12/17/m...

✋We live in #polarized times. What about the value of #compromise? Here is some data from Modul 5 of the @cses.bsky.social 👇

🔔New paper on party surrogation! What does it mean to feel represented by a party you didn’t vote for? In Party Politics with Liron Lavi, we explore the concept of Party Surrogation through a cross-country and individual-level analysis using @cses.bsky.social doi.org/10.1177/1354...

The winner of the 2024 GESIS Klingemann Prize is “Patterns of Affective Polarization toward Parties and Leaders across the Democratic World” by Reiljan, Garzia, Ferreira Da Silva, and Trechsel in the American Political Science Review. Congratulations! cses.org/2024/09/16/2...

Are you attending #APSA2024? Join us at a CSES Reception at 7:30 p.m. tonight (Thursday, September 5th) in the PCC, Room 107A. Enjoy finger foods and beverages as we update you about the project and announce the winner of the GESIS Klingemann Prize! cses.org/2024/09/03/a...

Read about how we collaborate with @cses.bsky.social ⬇️: www.cnes.community/index.php/ab...

Nominations are now being accepted for the 2024 GESIS Klingemann Prize for the Best CSES Scholarship, with a submission deadline of Friday, April 26, 2024: cses.org/2024/03/25/2...

CSES Announcement: A significantly updated Integrated Module Dataset (IMD) is now available for download. For more information, please see: cses.org/2024/02/27/i...

CSES Announcement: Second Call for Ideas for Module 7 Content (theme and questions). Proposals are due on or before April 5, 2024. For more information, please see: cses.org/2024/02/26/c...