Hi Michael, gute Beobachtung und danke für den Hinweis! Das lag daran, dass alle Berliner Wahlkreise in unserem Modell die gleiche demographische Zusammensetzung (des Kreises Berlin) bekommen haben. Das ist jetzt behoben. Die aktualisierten Karten sind online.
If you have ideas about what else we can add to make this more useful, or if we missed anything -- please let us know here or send a direct message!
Work in progress!
Spot bugs? Questions or suggestions? Let us know.
If you use the data, please cite us!
@awiedemann.bsky.social @hannohilbig.bsky.social Florian Sichart
The gerda R package (v0.5.0) makes it easy to load any dataset:
library(gerda)
municipal <- load_gerda_web("municipal_harm")
mayoral <- load_gerda_web("mayoral_harm")
Now includes Census 2022 data and covariates.
Install: install.packages("gerda")
NEW: Meinungsbild — subnational opinion estimates for 43 policy issues.
MRP on ~118,000 survey responses at 3 levels:
- 16 federal states
- 299 electoral districts
- 400 counties
Topics: immigration, climate, social spending, EU, defense, and much more.
german-elections.com/meinungsbild
NEW: The Election Explorer:
Visualize any election at the municipality level. Choose election type, year, and variable — see it on an interactive choropleth map.
Click any municipality for its full profile: time series, sparklines, context, comparison.
german-elections.com/dashboard
GERDA now covers 6 election types at the municipality level:
- Federal (1980-2025)
- State (1946-2025) ← REWRITTEN
- Municipal (1984-2025) ← EXPANDED
- Mayoral (1945-2025) ← NEW
- European (2009-2024) ← NEW
- County (1948-2024) ← NEW
All harmonized. Free CSV+RDS downloads
NEW: European Parliament elections (2009, 2014, 2019, 2024) at the municipality level, harmonized to 2021 boundaries.
NEW: County council elections (Kreistagswahlen) for 11 states, 1948-2024, at both municipality and county level.
NEW: Mayoral elections for 7 states (1945-2025):
- Election results with party vote shares
- Candidate-level data with gender + ethnicity classification
- Annual mayor panel tracking mayors across terms
+ Municipal council elections extended to 1984-2025.
First, we did a ground-up rewrite of our state elections pipeline.
Built from raw Landeswahlleiter files across all 16 states. Three harmonization versions (2021, 2023, 2025 boundaries).
State elections now cover 1946-2025 at the municipality level. (harmonized since 1990)
🚨 Just shipped a major update to GERDA, the German Election Database.
- State elections update: new years + mail-in
- 3 new election types: Mayoral, County, European
- Municipal elections: 1984-2025
- Meinungsbild public opinion
- New website & features
german-elections.com
Are university still a left-wing thing in Europe?
Unsure: HE is a hierarchical institution with egalitarian employees
I find that universities increasingly inculcate selfish career concerns for status while leaving universalist concerns for global justice unchanged
Very happy to see "The Green Transition and Political Polarization Along Occupational Lines" out in the
@apsrjournal.bsky.social. w/ @erikvoeten.bsky.social and @hannohilbig.bsky.social
doi.org/10.1017/S000...
Version 2.0 of the National Elections Database is online! nationalelectionsdatabase.com
We cover presidential and parliamentary elections 1789–2023, extending the post-1945 data of Electoral Turnovers @reveconstudies.bsky.social (academic.oup.com/restud/advan...)
w/ Benjamin Marx and Vincent Rollet
Auguri Francesco!
The database is work in progress. If you have any suggestions, comments, or issues, please feel free to email us or to file an issue in our Github repository (github.com/awiedem/awie...).
🔍 Key feature: for the 2025 election, we've created our own crosswalks to handle municipality mergers and splits over time.
📈 This update allows for consistent longitudinal analysis of voting patterns, accounting for administrative boundary changes over the past 35 years.
3️⃣ Harmonized data: Two versions available:
- 2021 borders: All elections (1990-2025) mapped to 2021 municipality boundaries
- 2025 borders: All elections (1990-2025) mapped to 2025 municipality boundaries
1️⃣ Raw data: Original election results at municipality level from 1980-2025, including all parties, voter counts, and mail-in voting information.
2️⃣ Unharmonized data: Cleaned and standardized raw data with consistent variable names and formats, ready for analysis. (1980-2025)
📊 Exciting update to our German Election Database! Our federal election panels now include the 2025 German federal election.
Download the data here: german-elections.com/election-data/
A thread about what is new:
Glückwunsch Jacob!
New (first! 🥳) Publication 🚨
High-street retail vacancies, capturing economic decline, are linked to increased support of UK's populist party, UKIP (now Reform).
Preprint with @vheddesheimer.bsky.social
Economic Insecurity Increases Affective #Polarization and Outgroup-Aversion
osf.io/preprints/os...
You may remember I'm on team "precarity" not team "social media." Causal / diff on diff evidence from Dutch panel study LISS en.centerdata.nl/liss-panel
Out now! "GERDA: The German Election Database." GERDA provides comprehensive municipal, state, and federal election results at the municipality level between 1990 and 2021.
www.nature.com/articles/s41...
Our paper "GERDA: The German Election Database" is out in Nature: Scientific Data!
We collected and harmonized election results for federal, state, and local elections for 1990-2021.
Updates for more recent elections, pre-1990 elections, and county elections soon!
Like this paper? Here's another that will be right up your alley.
Here, the authors merge voter files & online resumes to create a dataset of 34.5M people.
They show that Dems & Reps choose distinctive career paths and employers. This leads to a lot of partisan segregation at the workplace.
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 ⬇️🧵
With correct link: Just published on APSR First View: "Plutopopulism: Wealth and Trump’s Financial Base" by Sean Kates, Eric Manning, Tali Mendelberg, and Omar Wasow. www.cambridge.org/core/journal...
Daughters of immigrants are more upwardly mobile than daughters of locals in most destinations. Sons of immigrants are only more upwardly mobile outside of continental Europe, from Boustan, Fjællegaard Jensen, Abramitzky, Jácome, et al https://www.nber.org/papers/w33558
"Sorting for K Street: Postemployment Regulations and Strategic Wage Setting in Congress" by Elisa Maria Wirsching. www.journals.uchicago.edu/doi/10.1086/...