iiinova — where your digital self keeps evolving

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Marius Sältzer @msaeltzer.bsky.social · 06/09/2026

4 days left to Apply!

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Arndt Leininger @aleininger.bsky.social · 12/08/2026

We (@felixgruenewald.bsky.social and our RA Tom Anderer) have once again updated our Encyclopedia of Polarization! The update features several new contributions on polarization research. You can find the newest entries on polarization.wiki and some of them listed below:

polarization.wiki

Encyclopedia of Polarization

An Encyclopedia of Polarization

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Klara Müller @klaramueller.bsky.social · 12/08/2026

New WP!📄📣 For anyone working with quasi-experiments (especially UESD) and survey data, this is for you. Treatment events may affect not only opinions, but also survey participation and thereby bias causal estimates. I develop a framework to assess and tackle this bias. osf.io/preprints/so...

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Sandra Morgenstern @snmorgenstern.bsky.social · 06/08/2026

Was interviewed by @zeitonline.bsky.socia on the topic of migration and information in light of recent events. Read here (not open access): www.zeit.de/gesellschaft...

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Martin Gross @martingross.bsky.social · 04/08/2026

Es ist endlich da! 😍 Unser (@cerpintaxt.bsky.social & @donyhu.bsky.social) Buch "Empirische Kommunalpolitikforschung: Eine Einführung" (@springer.springernature.com) 💡Eine empirisch-vergleichende, politikwissenschaftliche Einführung in die Kommunalpolitik 🔗 link.springer.com/book/10.1007...

link.springer.com

Empirische Kommunalpolitikforschung

Dieses Lehrbuch bietet Lehrenden und Studierenden eine kompakte Einführung in die empirische Kommunalpolitikforschung.

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Jeyhun Alizade @jeyalizade.bsky.social · 23/07/2026

📘 Excited to share that our new Cambridge Elements book, Downplaying Extremism? (with @rdancygier.bsky.social & @homola.bsky.social ), is now out—and available open access: doi.org/10.1017/9781.... A short thread 👇 (1/7)

doi.org

Downplaying Extremism? How the State Approaches Right-Wing and Left-Wing Extremist Threats

Cambridge Core - Political Philosophy - Downplaying Extremism? How the State Approaches Right-Wing and Left-Wing Extremist Threats

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Vincent Heddesheimer @vheddesheimer.bsky.social · 27/07/2026

🚨 New GERDA update: - Large update of mayoral elections (6 new states) - Landrat elections - Wahlkreis (district)-level results (BW & LW) - Local council seats (Gemeinde/Stadt & Kreis) - 2026 elections: BW state, BY & HE local More info below and here: www.german-elections.com

german-elections.com

GERDA: German Election Database

Comprehensive dataset of local, state, federal, European, mayoral, Landrat, and county election results in Germany at the municipality and constituency (Wahlkreis) level, plus subnational public opini...

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Jochen Müller @jocmuel.bsky.social · 17/07/2026

An der @unigreifswald.bsky.social sind zwei unbefristete Vollzeitstellen ausgeschrieben: eine für Politikwissenschaftler:innen, eine für Soziolog:innen. Bewerbungsfrist: 31. August 2026. Teilen ausdrücklich erwünscht. Die Ausschreibungen folgen im nächsten Post. Fragen gerne per DM.

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Korinna Lindemann @korinlind.bsky.social · 14/07/2026

One week left to apply!

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Andreas Busch @abusch.bsky.social · 11/07/2026

Herzlichen Dank an @juliusk.bsky.social für seinen #Gastvortrag am IPol der @uni-goettingen.de vorgestern! Es ging um die Erfolge der AfD im ländlichen Raum, demokratische Resilienz und die Visualisierung von Forschungsergebnissen. Danke auch für die sehr ausführliche Diskussion!

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Omar Wasow @owasow.bsky.social · 10/07/2026

Does protesting authoritarianism alienate moderates? New working paper on 1960s West German student movement suggests protest was associated with modest *increase* in support for the center left, potentially by reshaping perceptions of the far right. osf.io/preprints/so...

Title page of an academic working paper titled The Electoral Effects of Anti-Authoritarian Protest: Evidence from the West German Student Movement. The author is Julian Voß, and the paper is dated July 6, 2026.

Abstract of a working paper examining whether anti-authoritarian protest generates electoral backlash. Using evidence from the 1960s West German student movement, the study finds no city-level backlash. Instead, protest is associated with increased support for the center-left Social Democrats, apparently driven by defections from the center right and by changes in how voters perceived the far-right NPD and democratic threats.

Map of West Germany showing the spatial distribution of student protest events between 1965 and 1969. Municipalities with protest activity are shaded in progressively darker red to indicate one, two to five, or more than five events. Protest occurred across much of West Germany, with clusters around major urban areas, while East Germany is shaded gray.

Dot-and-whisker plot showing estimated associations between protest exposure and party support at the individual level. Protest exposure is associated with higher support for the Social Democrats (SPD) and lower support for the Christian Democrats (CDU/CSU), with little apparent change for the far-right NPD or the liberal FDP. Results are similar across models using respondent-only controls and models that additionally include municipality controls.

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Thomas Tichelbaecker @ttichelbaecker.bsky.social · 08/07/2026

Happy to share that I've (re)joined @aleininger.bsky.social at @uni-hamburg.de as a postdoc! I'll continue my research on party organizations, building on my dissertation @princeton.edu. My first dissertation spin-off examines how far-right parties tap into rural communities. 1/5

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Arndt Leininger @aleininger.bsky.social · 30/04/2026

📢 We're hiring for my project RESPOL on residential mobility & electoral realignment 📍 University of Hamburg 📅 4y, 75% FTE 🔍 pol behavior, comp politics, regional inequalities 📊 quant, administrative & survey data Please share with talented MA students! 🔗 www.uni-hamburg.de/en/stellenan...

uni-hamburg.de

Job advertisement

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Arndt Leininger @aleininger.bsky.social · 01/04/2026

Somehow I always take up new positions on April Fool's Day but this is no joke: as of today I am professor of political science, especially methods @uni-hamburg.de. Obviously I'm stoked to have landed a permanent position and look forward to working w/ great new colleagues @politikuhh.bsky.social

Allende-Platz 1, ein Standort der Politikwissenschaft der Uni Hamburg.

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Vincent Heddesheimer @vheddesheimer.bsky.social · 03/04/2026

🚨 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

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Thomas Tichelbaecker @ttichelbaecker.bsky.social · 04/12/2025

I’m thrilled to share that I defended my dissertation on Monday! It examines how local elites help new parties attract voters and build local branches, using a unique dataset of ~450,000 local candidates in Germany. It took not one but three villages to write this. A 🧵 1/6

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Denis Cohen @denis-cohen.bsky.social · 10/11/2025

Just published in @bjpols.bsky.social: @sergipardos.bsky.social and I show that inter-regional moves in pursuit of employment security reduce individual worries about immigration—a mobility pattern that, in the aggregate, reinforces spatial polarization in anti-immigration sentiment. cup.org/3XiB6yD

cup.org

Regional Labor Markets, Residential Mobility, and Anti-Immigration Sentiment | British Journal of Political Science | Cambridge Core

Regional Labor Markets, Residential Mobility, and Anti-Immigration Sentiment - Volume 55

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Jeyhun Alizade @jeyalizade.bsky.social · 30/09/2025

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

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...

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Noam Gidron @noamgidron.bsky.social · 02/06/2025

Thinking about immigration from a cultural perspective heightens distrust of political opponents—with Adams, @rwillh11.bsky.social and @ttichelbaecker.bsky.social at @bjpols.bsky.social. Might interest scholars of polarization and ideology, and those analyzing open-ended questions. cup.org/3ZajcQ1

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Arndt Leininger @aleininger.bsky.social · 30/05/2025

Another great paper by @ttichelbaecker.bsky.social of now also TU Chemnitz. Congrats, Thomas!

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British Journal of Political Science @bjpols.bsky.social · 30/05/2025

NEW - Beyond Observational Relationships: Evidence from a Ten-Country Experiment that Policy Disputes Cause Affective Polarization - cup.org/3Zvgchx - @noamgidron.bsky.social, James Adams, @rwillh11.bsky.social & @ttichelbaecker.bsky.social #OpenAccess

BJPolS abstract discussing scholars' investigation into polarization and logical comparisons across party entities, cultural priming in economic discussions, and the effect of cultural debates on political discourse.

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Thomas Tichelbaecker @ttichelbaecker.bsky.social · 02/06/2025

Important research by @annekreft.bsky.social reveals the scale and impact of political violence in Germany. Drawing on a survey of over 1,400 politicians, the study shows that 1 in 5 politicians reduces their political activity as a result.

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Felicia Riethmüller @feliciarthm.bsky.social · 13/05/2025

Thrilled to see my 1st PhD paper out in #PartyPolitics! Based on ~15000 posts by 86 German subnat. parties (2015-2019), Simon Franzmann & I show that dominant & challenger parties differ in the use of policy-based vs symbolic & positive vs negative appeals. 🔓: doi.org/10.1177/1354...

Abstract
Social group appeals are a crucial but often overlooked aspect of party competition. Challenger parties differ from
dominant parties not only in their issue entrepreneurship and anti-establishment rhetoric, but also in how they approach
social groups. Whereas dominant parties can and must use their policy record when appealing to groups rhetorically,
challenger parties compensate for their lack of policy influence and long-lasting group ties by using more symbolic groupbased appeals, creating affective affiliations with voters while avoiding accountability or dividing their potential base.
Similarly, they are more inclined to use negative group-based appeals. Using a most-similar-systems design and a new
dataset of 15,460 tweets from German subnational parties, our main finding is that dominant parties, particularly those
having held the prime minister’s office, favour policy-based group appeals, while challengers rely more on symbolic appeals.
However, differences in appeal strategies diminish during campaign times. Our findings underline the importance of groupbased appeals for mainstream-challenger competition.

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Sofia Ammassari @ammassarisofia.bsky.social · 12/05/2025

Thrilled that my article on women's activism in PRR parties has been conditionally accepted in @cpsjournal.bsky.social! Drawing on membership surveys of the League 🇮🇹 and the Sweden Democrats 🇸🇪, I show that women members are *more active* than men because they are more embedded in party networks.

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Arndt Leininger @aleininger.bsky.social · 29/04/2025

Another great publication by @ttichelbaecker.bsky.social and his first with TU Chemnitz affiliation: "Does political violence undermine descriptive representation? The case of women in politics" out in EJPR. #openaccess Thanks for helping us put Chemnitz on the map, Thomas! doi.org/10.1111/1475...

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Thomas Tichelbaecker @ttichelbaecker.bsky.social · 08/05/2025

Happy to share a new paper now out in EJPR w/ @jeyalizade.bsky.social , @fabioellger.bsky.social and @mgruenewald.bsky.social exploring gendered effects of political violence on political supply. ejpr.onlinelibrary.wiley.com/doi/fu… A 🧵 with findings

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Arndt Leininger @aleininger.bsky.social · 08/05/2025

New 📰: In "Can Individual MPs Damage Their Party’s Brand? Quasi-Experimental Evidence from a Public Procurement Corruption Scandal" out in @thejop.bsky.social @lukrudolph.bsky.social and I show that the "mask affair" cost the CDU 4%-points in elections. www.journals.uchicago.edu/doi/10.1086/... 1/

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Saad Gulzar سعد گلزار @saadgulzar.bsky.social · 07/08/2024

🚨 Just published in American Political Science Review 🚨 with Durgesh Pathak @sarahthompson.bsky.social and Aliz Toth We show that strategic messaging by party leaders can effectively shape volunteer rank&file recruitment with consequences for long-term party development

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Johanna Rickne @johannarickne.bsky.social · 16/04/2025

We’re excited to introduce the Swedish Municipal Council Database! This open-access resource contains our hand-coded data for all local politicians in Sweden's democratic local elections between 1919 and 2018. A 🧵 Co-authors 🤩 @abrarbawati.bsky.social, @josefinemagnusson.bsky.social Moa Frödin

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Korinna Lindemann @korinlind.bsky.social · 26/03/2025

New preprint available! In this paper, @antvalentim.bsky.social and I investigate why progressive parties, such as the greens, might be more attractive for immigrants from established democracies than those from (post-)authoritarian regimes: osf.io/preprints/os... 🧵⬇️

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Noam Gidron @noamgidron.bsky.social · 24/03/2025

🚨Why do masses support democratic backsliding?🚨 A new @AJPS_Editor paper with Yotam Margalit, @liorsheffer.bsky.social and Itamar Yakir explores this question in the Israeli context. Our findings emphasize the role of leader attachment and affective polarization. doi.org/10.1111/ajps...

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Thomas Tichelbaecker @ttichelbaecker.bsky.social · 21/01/2025

Excited to share that I’ve joined the team led by @aleininger.bsky.social at TU Chemnitz as research fellow. I’m looking forward to exploring the legacies of democratic transitions and to connecting with my new colleagues in Chemnitz!

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Felix Haass @felixhaass.bsky.social · 11/01/2025

My fantastic co-author Julian Voss has meticulously compiled municipality-level election results for Post-WW2 Western German elections (1949-1969) from historical records. What a great resource! Read the paper, use the data: osf.io/preprints/os...

Maps of municipality-level election results

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Thomas Tichelbaecker @ttichelbaecker.bsky.social · 07/01/2025

Very happy that our @cambridgeuppolisci.bsky.social Element is now out! @noamgidron.bsky.social and I review the two dimensional framework and how it resonates with ordinary citizens! Check out @noamgidron.bsky.social 's 🧵 to see what we find! 👇

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Arndt Leininger @aleininger.bsky.social · 20/12/2024

🚨 Job alert: I have an opening for a researcher position (65% FTE, 2 years) in a project on "Elite Affective Polarization in Israel and Germany" funded by the German Israeli Foundation and conducted jointly w/ @liorsheffer.bsky.social. 🗓️ 17/01/2021 www.tu-chemnitz.de/verwaltung/p...

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Rahsaan Maxwell @rahsaanmax.bsky.social · 08/12/2023

Do you think framing immigration debates as pro vs anti is oversimplified? If so, you'll appreciate our new research note in IMR (w M Helbling, F Jaeger, R Traumueller). We examine preferences for immigration policies across a wide range of detailed proposals (1/n) drive.google.com/file/d/1yi-7...

drive.google.com

IMRBroadDetailed.pdf

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Laia Balcells @laiabalcells.bsky.social · 29/10/2023

What Difference Do Museums Make? A chapter co-authored with Elsa Voytas in the Oxford Handbook of Transitional Justice academic.oup.com/edited-volum... Polisky

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Vincent Heddesheimer @vheddesheimer.bsky.social · 09/10/2023

1/ New Pre-Print When do firms engage in climate politics? We argue that lobbying occurrence, intensity, and targeting depend on the multifaceted potential impacts of climate change on firms. A short 🧵https://osf.io/preprints/socarxiv/yq27d/ Polisky

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Thomas Tichelbaecker @ttichelbaecker.bsky.social · 20/09/2023

Delighted that this article on measures of affective polarization w/ NoamGidron, Will Horne and Jim Adams is now available online in POQ 🥳 We examine the relationship between hostility towards out-parties and out-partisans across 10 countries. Our novel dataset is also available on dataverse!

academic.oup.com

What Do We Measure When We Measure Affective Polarization across Countries?

Abstract. Measures of affective polarization—that is, dislike and hostility across party lines—have been developed and validated in the context of America’s two

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