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Koichi Osamura

@koichiosamura.bsky.social
173 followers 188 following 134 posts

👨🏻‍🔬 Research fellow in political science at @stawi-univie.bsky.social 👨🏻‍🎓 Dr in political science from @univie.ac.at 🕵🏻‍♂️ Coalitions, legislative behavior, party competition 🔎 South America, Europe, and Japan 🏠 osamura.org

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Reposted by Koichi Osamura
Daniel Brito @dabrito.bsky.social · 25/09/2026
Pra quem é do DF e ainda esta decidindo o voto pra distrital, vale dar uma olhada em como as deputadas e os deputados se comportaram na votação que autorizou o BRB a comprar o Master em agosto de 2025. brito-daniel.github.io/cldf-votacao...
brito-daniel.github.io
Votação CLDF — PL 1882/2025 (Banco Master)
Como a Câmara Legislativa do DF aprovou o PL 1882/2025, que autorizava o BRB a comprar o Banco Master, e como cada deputado e deputada votou.
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Koichi Osamura @koichiosamura.bsky.social · 22/09/2026
I'm very happy to announce that today I successfully defended my doctoral dissertation in political science at the @univie.ac.at
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Paul Ford @ftrain.com · 16/09/2026
hey I heard you like sankey diagrams that show huge populations making terrible decisions
A very complicated Sankey diagram showing the usage of electricity in the United States. Or the left are sources of energy and on the right are consumers, so, for example, nuclear is on the left and residential is on the right. Petroleum dominates.
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Koichi Osamura @koichiosamura.bsky.social · 14/09/2026
I'm quite flattered: it looks like a recently appointed cohort of federal civil servants in Brazil has been using my paper on political appointments as part of the "Governance and Governability" module in their training curriculum. Thanks to whoever put it on the reading list!
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Institut für Staatswissenschaft / Department of Government @stawi-univie.bsky.social · 14/09/2026
Upcoming Guest Talk! 🎤 We are happy to announce that Assoc. Prof. Miguel Pereira @miguelpereira.bsky.social will be holding a talk on Homeowners in Office and Housing Policy at our department on October 10th. staatswissenschaft.univie.ac.at/news-detaila...
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Rádio Escafandro @radioescafandro.bsky.social · 02/09/2026
Atenção, escafandristas! O episódio 168 de Escafandro está no ar em todos os tocadores de áudio! Nele, a gente te convida pensar sobre sistemas de monitoramento e reconhecimento facial. As câmeras nos deixam mais seguros? Escute: open.spotify.com/episode/1NrF...
open.spotify.com
168: Sorria, você está sendo preso
Escafandro · Episode
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Peter Luca Versteegen @versteegenluca.bsky.social · 31/08/2026
🚨🚨 New publication: 🚨🚨 Does affective polarization (AP) change citizens’ willingness to support democratic norms or participate? 🧵1/10 Full paper here: link.springer.com/article/10.1...
link.springer.com
Cool Citizens? How Affectively Unpolarized Citizens View and Participate in Democracy - Political Behavior
Does affective polarization change how citizens view and participate in democracy? We posit that the answer to this crucial question depends on how affectively unpolarized citizens view and participat...
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Isabella Rebasso @isabellareb.bsky.social · 28/08/2026
New paper with Yanna Krupnikov out in Political Communication! 🎉 We know moral-emotional content ("moral outrage") spreads fast on social media. But does that mean people actually want to see it? We tested whether people select this content when given the choice - turns out, not really.
tandfonline.com
Rethinking Assumptions About Moral Content Selection: Moral-Emotional Content May Be Less Appealing Than Assumed
Recent work has shown that moral-emotional content spreads rapidly on social media platforms such as X (Twitter). These patterns have led to concerns that social media facilitates the spread of mor...
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Christina Gahn @christinagahn.bsky.social · 06/08/2026
🥳 New Paper with @jadevrielink.bsky.social and @skruikemeier.bsky.social: on how voters perceive the political ads they receive, and why that tailoring perception matters more than we usually assume. 🧵 1/3 📄 doi.org/10.1080/1369...
Hand-drawn doodle illustration in three steps. On the left, a large smartphone with "VOTE for me" on the screen, surrounded by small icons such as animals and speech bubbles. An arrow points to a smiling person looking thoughtful, with thought bubbles above showing the same motifs (pets, music, people). Another arrow points to the same person, now beaming, holding up the smartphone with the "VOTE for me" ad and giving a thumbs up. The illustration shows how political advertising that feels personally relevant is evaluated more positively.
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Cas Mudde @casmudde.bsky.social · 01/08/2026
Brilliant ad
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Robert Komaniecki @komaniecki.bsky.social · 24/07/2026
This utter muppet of a conservative Canadian politician in New Brunswick forgot to remove the LLM text from his floor speech and read it out loud.
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Isabella Rebasso @isabellareb.bsky.social · 15/07/2026
Very belatedly sharing this because the last months were busy: The limits of appraisal theory for political emotions is out in Political Psychology! @gijsschumacher.bsky.social, @mrooduijn.bsky.social and I ask whether appraisal theories of emotion work the same way in politics as in everyday life.
onlinelibrary.wiley.com
The limits of appraisal theory for political emotions: Evidence from two U.S. surveys
Emotions, such as anger and anxiety, play a central role in political behavior and are extensively studied by political scientists. However, political science has largely adopted psychological theori...
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Sabine Döring @sabinedoering.bsky.social · 10/07/2026
„Forschung ist kein Selbstzweck. Forschung muss zu Wertschöpfung, Produktion und Innovation in Deutschland und in Europa führen“, so der @bundeskanzler. Die Wissenschaftsfreiheit, wie sie Art. 5 Abs. 3 GG und das Bundesverfassungsgericht verstehen, setzt einen anderen Maßstab. 🧵 1/n
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Institut für Staatswissenschaft / Department of Government @stawi-univie.bsky.social · 08/07/2026
How do school visits by politicians effect students' attitudes towards politicians and democracy? 🏫 A recent pre-post survey finds significant improvements in their image of politicians, internal/external efficacy, as well as knowledge and interest. 📈 Read the study recap:
staatswissenschaft.univie.ac.at
BLOG: The impact of school visits by politicians
Many people perceive politicians as an elite outgroup that is untrustworthy and extremely different from the ordinary citizen. To some extent, this even resembles a social group identity. Research has...
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Tarik Abou-Chadi @tabouchadi.bsky.social · 06/07/2026
Trump has not ruined international football. FIFA has. For decades. Yes, the bluntness of Trump is mindblowing but this is FIFA business as usual. Not only in autocracies. Look at the massive corruption in how Germany became host of the 2006 World Cup. An event we still refer to as Sommermärchen.
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Koichi Osamura @koichiosamura.bsky.social · 04/07/2026
I'm very happy to share that my first dissertation paper is now online in Party Politics (🔓)! I examine how political appointments (patronage) relate to coalition support in multiparty presidential systems, using roll-call data from Brazil's Chamber of Deputies (2003-2018). doi.org/10.1177/1354...
journals.sagepub.com
Bureaucratic appointments and coalition support in presidential systems – An analysis of Brazil’s Chamber of Deputies - Koichi Osamura, 2026
How does the provision of political appointments influence coalition support in multiparty presidential systems? While the importance of cabinet portfolios for ...
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Markus Wagner @markuswagner.bsky.social · 02/07/2026
Now out: journals.sagepub.com/doi/10.1177/...
journals.sagepub.com
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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Safely Endangered @safelyendangered.bsky.social · 01/07/2026
I'm drawing a daily doodle for July, feel free to drop suggestions. Here's day one: worryo
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Koichi Osamura @koichiosamura.bsky.social · 30/06/2026
Meanwhile, yesterday the Colombian president-elected Espriella was filmed throwing sieg heils to his supporters... Terrible times for South America
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Koichi Osamura @koichiosamura.bsky.social · 21/06/2026
I had a great time attending and presenting my joint research at the inaugural conference of the @epssnet.bsky.social. It was amazing to see so many familiar faces and get to know many new people.
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Koichi Osamura @koichiosamura.bsky.social · 17/06/2026
Already in Belfast for the @epssnet.bsky.social conference! Looking forward to presenting our paper on whether female ministers lose competencies more often during ministerial reforms. (with @thomasmmeyer.bsky.social, Ulrich Sieberer and David Schmuck) 19/06, 15:20, at Lisburn (Hilton) #EPSS2026
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Koichi Osamura @koichiosamura.bsky.social · 15/06/2026
I had a great chat with Mara Tribuna from the Portuguese news outlet @jornalexpresso.bsky.social and their podcast O Mundo a Seus Pés. This was my third time on the podcast, and we talked about the succession line to the Japanese imperial throne.
expresso.pt
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Christina Gahn @christinagahn.bsky.social · 09/06/2026
Excited to share our new paper in @thejop.bsky.social with @krausewe.bsky.social! Parties polling just below an electoral threshold are far less likely to clear it: a self-fulfilling prophecy that diminishes when polls communicate uncertainty. 🗳️📊 www.journals.uchicago.edu/doi/10.1086/...
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Christina Gahn @christinagahn.bsky.social · 09/06/2026
This builds on our earlier work in @ejprjournal.bsky.social, where we showed that margins of error shape vote choices at the top of the race. Now we find the same is true at electoral thresholds. Polls & their communication matter throughout the ballot. 👇🏁 doi.org/10.1111/1475...
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Werner Krause @krausewe.bsky.social · 09/06/2026
New paper out in the @thejop.bsky.social (w/ @christinagahn.bsky.social) Do opinion polls shape election results? Using both cross-national data and a survey experiment, the answer we find is yes - though it depends on how we communicate polling results. www.journals.uchicago.edu/doi/10.1086/...
Image showing the abstract of the paper "Self-Fulfilling Prophecies at the Voting Booth" by Werner Krause and Christina Gahn, published in the Journal of Politics. The abstract describes a quasi-experimental study across 25 countries finding that parties polling just below electoral thresholds are approximately 45 percentage points less likely to clear them, and that this effect diminishes when voters are informed about polling uncertainty.
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Koichi Osamura @koichiosamura.bsky.social · 08/06/2026
Happy to contribute once again with the @jornalexpresso.bsky.social and the great Hélder Gomes for an article about the rumors about the "new" Russian interference on the European stability through nostalgic sectors in Austria. My two cents were on how Austrian parties and see (or don't) the matter.
expresso.pt
Cabeças de porco em mesquitas, apartamento de luxo no Dubai e nostalgia dos Habsburgos: o manual russo para fraturar a Europa
Moscovo quer fazer de Viena o centro de uma “nova Áustria-Hungria”, conservadora e pró-russa. O projeto consta de uma fuga de documentos da fábrica de trolls do Kremlin, a Social Design Agency, revela...
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Ian Hussey @ianhussey.mmmdata.io · 06/06/2026
"I bet he's thinking about other women" meme template.
"I bet he's thinking about Beta regression"
"Me thinking about Beta regression"
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Crazy Ass Moments in LatAm Politics @asslatam.bsky.social · 28/05/2026
Pastor Sergeant Isidório, an incumbent Brazilian MP, publicly apologized for mistakenly voting against a bill to reduce working hours during a committee session. The catch is that he couldn't have voted anyway, as he was only an replacement member.
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Julia Partheymüller @schnizzl.bsky.social · 22/05/2026
2,5 Milliarden weniger für die Universitäten 🤯 Entspricht inflationsbereinigt einem Personalabbau von bis zu 20% der Beschäftigten Proteste am 27./28. Mai 2026 in Wien, Linz, Graz, Salzburg, Klagenfurt + Innsbruck geplant unigewerkschaft-bv13.goed.at @nuwiss.bsky.social #IchBinHanna #UnisRetten
Aktuelles von der Bundesleitung BL13
2,5 Milliarden weniger für die Universitäten
Protestmaßnahmen am 27. und 28. Mai 2026

Liebe Kolleginnen und Kollegen!

Die Bundesregierung hat unter Hinweis auf den Spardruck angekündigt, das Budget der Universitäten in Österreich in der nächsten Leistungsperiode 2028-2030 um eine Milliarde Euro gegenüber der laufenden zu reduzieren. Dies trifft die österreichische Wissenschaftslandschaft ins Mark - es entspricht inflationsbereinigt dem Äquivalent eines Personalabbaues von bis zu 20% der Beschäftigten!

Dies darf nicht hingenommen werden; nicht nur im Hinblick auf die bereits erbrachten Vorleistungen (wir haben im Vorjahr den niedrigsten Gehaltsabschluss aller österreichischen Kollektivverträge hinnehmen müssen, damit der FTI-Pakt finanziert werden konnte) und auf die Integrität des Wissenschaftsstandortes Österreich, sondern auch um der Generationengerechtigkeit willen - nicht zu vergessen die Studien- und Karrierebedingungen für den wissenschaftlichen Nachwuchs und alle, denen an qualitativ höchstwertiger Ausbildung gelegen ist. 

Um unserem Protest gegen die unverhältnismäßigen Sparmaßnahmen Ausdruck zu verleihen, rufen wir alle Angehörigen der Universitäten und alle Menschen, denen Wissenschaft und Forschung in unserem Lande wichtig sind, zur Teilnahme an den Kundgebungen auf, die am Mittwoch und Donnerstag der kommenden Woche stattfinden werden:

Wien: Mittwoch, 27.05, 13:00 Uhr, Uni Wien (Universitätsring 1)
Linz: Donnerstag, 28.05, 16:00 Uhr, Hauptplatz
Graz: Donnerstag, 28.05, 14:00 Uhr, Wilhelm Fischer Allee
Salzburg: Donnerstag, 28.05, 14:00 Uhr, Kapitelplatz
Innsbruck: Genauere Infos folgen!
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Klaudia Wegschaider @wegschaider.bsky.social · 20/05/2026
"Bei 5,1 Milliarden, die im Budget hin- und hergeschoben werden, sind 2,5 Milliarden Euro, die von den Unis genommen werden, mehr als unverhältnismäßig", sagt der Rektor der Universität Wien. www.derstandard.at/story/300000...
derstandard.at
Eine Milliarde weniger Budget: Unis drohen der Regierung und sagen ihr den Kampf an
Kommenden Mittwoch wollen die Rektorinnen und Rektoren am Ring demonstrieren. Aus Protest steigen sie auch aus dem Hochschulstrategieprozess des Wissenschaftsressorts aus
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Institut für Staatswissenschaft / Department of Government @stawi-univie.bsky.social · 19/05/2026
Upcoming Guest Talk! 🎤 We are happy to announce that Christoffer Green-Pedersen will be holding a talk on the topic "Coalition Voting in Comparative Perspective: Under What Circumstance do Voters take Coalitions into Account?" on 1st of June.
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Christina Gahn @christinagahn.bsky.social · 15/05/2026
🎯 New paper alert! It includes the main theoretical & empirical contribution of my dissertation: disentangling targeting and tailoring in political social media advertising. Really happy @meinungsfuehrer.bsky.social and I found such a great home for it 🏠 Open Access 👉 doi.org/10.1080/1369... 1/4
doi.org
Targeting and/or tailoring?! A theoretical framework and its application to political social media advertising
Despite the widespread use of data-driven campaigning (DDC), there is limited conceptual clarity and empirical understanding of how political parties employ the advertising strategies of targeting ...
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Jule Kegel @julekgl.bsky.social · 13/05/2026
My first paper is out! Co-authored with @falkscheidig.bsky.social doi.org/10.1093/pa/g...
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Julia Partheymüller @schnizzl.bsky.social · 06/05/2026
🚨 New Article in Politics and Governance When Populists Win but Are Excluded From Power: Explaining Post‐Electoral Dynamics of Democratic Satisfaction By @schnizzl.bsky.social and S. Kritzinger 🔗 Open access: doi.org/10.17645/pag... 🧵 1/6 #Polisky
doi.org
When Populists Win but Are Excluded From Power: Explaining Post‐Electoral Dynamics of Democratic Satisfaction | Article | Politics and Governance
Julia Partheymüller, Sylvia Kritzinger
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Peter Luca Versteegen @versteegenluca.bsky.social · 28/04/2026
🚨 Western democracies are often described as polarized. @katharinalawall.bsky.social, @mtsakiris.bsky.social + I study how polarization actually feels. Now published in @ejprjournal.bsky.social, we asked citizens in 5 European countries to report their emotions ⬇️ www.cambridge.org/core/journal...
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Christina Gahn @christinagahn.bsky.social · 22/04/2026
In the age of AI, there's a lot of talk about students not doing real work anymore. As a teacher, I catch myself focusing on the struggles rather than the wins. Time to fix that. A thread highlighting standout papers from my quantitative methods seminar last term @univie.ac.at. 🧵
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Institut für Staatswissenschaft / Department of Government @stawi-univie.bsky.social · 22/04/2026
Upcoming Guest Talk! 🎤 We are happy to announce that @jwaeckerle.bsky.social will be holding a talk about the interplay of power and femininity in politics on 4th of May. Not in Vienna? Feel free to join online! Find all details here: staatswissenschaft.univie.ac.at/news-detaila...
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Accented Cinema @accentedcinema.bsky.social · 17/04/2026
Why do the Japanese like their buns askew (2026)
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Koichi Osamura @koichiosamura.bsky.social · 17/04/2026
O lance dos "tribunais dos vitoriosos" é sinistro porque eles também decidem quem não vão se sentar no banco dos réus. Basta ver o que aconteceu no Japão, onde os EUA pouparam uma penca de criminoso ao darem anistia em troca de informações sobre a Unidade 731 e seus experimentos biológicos.
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Cas Mudde @casmudde.bsky.social · 09/04/2026
Hitler's NSDAP never gained the support of more than one-third of voters in free and fair elections! Just like far-right leaders today, Hitler came to power because of the collaboration of right-wing elites, who either wanted to "fight off the left" or thought they could play the far right.
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Semih Çakır @mascakir.bsky.social · 07/04/2026
🚨 New paper with great co-authors (@oguzhan-alkan.bsky.social @rdassonneville.bsky.social @zeynsom.bsky.social) in Political Behavior! How well do citizens perceive where parties stand? 🤔 Open access: rdcu.be/fb83Z
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Tobias Harris @tobiasharris.bsky.social · 03/04/2026
One in four ballots cast from overseas in Japan's general election arrived too late to be counted. www.nikkei.com/article/DGXZ...
nikkei.com
衆院選の在外郵便投票、27%が締め切り超過 政府答弁書 - 日本経済新聞
政府は3日に閣議決定した答弁書で、先の衆院選で海外居住者が利用した「在外投票」の郵便投票のうち、投票締め切りまでに市町村の選挙管理委員会に届かなかった割合が小選挙区で27.7%、比例代表で27.9%に上ったと明らかにした。いずれも53件。2024年の衆院選や昨年の参院選に比べ、締め切
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Julia Partheymüller @schnizzl.bsky.social · 02/04/2026
🎉 New release! An updated version of the #AUTNES Online Panel Study 2017–2024 (SUF edition) is now available via @aussda.bsky.social. 📊 Now includes the post–coalition formation wave (March 2025). 🔗 Download & explore: doi.org/10.11587/HNU... #openscience #elections #PoliSky
Screenshot of the AUSSDA (Austrian Social Science Data Archive) webpage for the “AUTNES Online Panel Study 2017–2024 (SUF edition).” The page shows the dataset title, version 2.0, authors, citation information with DOI link, and a description noting it is a multi-wave panel survey covering Austrian national elections (2017, 2019, 2024). On the right, there is a blue “Access Dataset” button and a metric indicating 8,594 downloads. Keywords and licensing information are listed below.
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Jule Kegel @julekgl.bsky.social · 24/03/2026
Are you a policymaker, teacher, practitioner, academic in political science, psychology, education or related field? We’re inviting experts to complete a short survey on youth political participation: tinyurl.com/ywnseae3 For every completion, we’ll donate €1.20 to UNICEF. Please share!
tinyurl.com
Qualtrics Survey | Qualtrics Experience Management
The most powerful, simple and trusted way to gather experience data. Start your journey to experience management and try a free account today.
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三春充希(はる)⭐未来社会プロジェクト @miraisyakai.bsky.social · 23/03/2026
イラン攻撃に関する世論調査をまとめました。
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Tobias Harris @tobiasharris.bsky.social · 19/03/2026
In fairness, we did have a president vomit on a Japanese prime minister's lap.
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Koichi Osamura @koichiosamura.bsky.social · 19/03/2026
If you are a PhD student researching on legislative studies, the Summer School of the @sgparliaments.bsky.social is an excellent opportunity to expand your network and to present and discuss your own research, all of that under the supervision of renowned scholars on the field.
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Sarah Ledoux @sarahledoux.bsky.social · 12/03/2026
Delighted to see our collaboration out in doi print 🎉 In this paper, we qualitatively and quantitatively analyse the concept of 'electoral personalism' through the case of Milei in Argentina and identify 3 key elements: self-promotion, ideological rhetoric and moral appeals. See link for more 👇
cambridge.org
Campaigning against the Casta: Electoral Personalism and the Rise of Javier Milei in Argentina | Government and Opposition | Cambridge Core
Campaigning against the Casta: Electoral Personalism and the Rise of Javier Milei in Argentina - Volume 61
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Markus Wagner @markuswagner.bsky.social · 13/05/2025
The kind of question that provokes an identity crisis among Austrian scholars 😬
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MeidasTouch @meidastouch.com · 12/03/2026
This is like watching Trump bankrupt a casino in real time. Except this time we are the casino.
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