Publications

Sebastian Stier, Sebastian A. Popa, Yannis Theocharis, Bryan Boyle (2025). Online election campaigning in changing political environments: A comparison of the 2014 and 2019 European Parliament elections. Party Politics.

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Sebastian Stier, Pascal Siegers, Johannes Breuer (2025). Radical right populism and the media: Evidence from the supply side and demand side of political information in Germany. European Sociological Review.

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Jürgen Maier, Corinna Oschatz, Sebastian Stier, Mona Dian, Marius Sältzer (2025). Beyond rationality. Toward a more comprehensive understanding of the use of negative campaigning. European Political Science Review.

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Sebastian Stier, Corinna Oschatz, Bernhard Clemm Von Hohenberg, Jürgen Maier, Alessandro Nai, Nora Kirkizh (2025). When do candidates 'go negative'? A conjoint analysis to unpack the mechanisms of negative campaigning. Electoral Studies.

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Frank Mangold, David Schoch, Sebastian Stier (2024). Ideological self-selection in online news exposure: Evidence from Europe and the US. Science Advances.

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Cornelius Puschmann, Sebastian Stier, Patrick Zerrer, Helena Rauxloh (2024). Politicized and paranoid? Assessing attitudinal predictors of alternative news consumption. Journal of Broadcasting & Electronic Media.

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Felix Schmidt, Sebastian Stier, Lukas Otto (2024). Incivility in comparison: how context, content and personal characteristics predict exposure to uncivil content. Social Science Computer Review.

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Felix Schmidt, Frank Mangold, Sebastian Stier, Roberto Ulloa (2024). Facebook as an Avenue to News: A Comparison and Validation of Approaches to Identify Facebook Referrals. Political Communication.

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Bernhard Clemm Von Hohenberg, Sebastian Stier, Ana S. Cardenal, Andrew M. Guess, Ericka Menchen-Trevino, Magdalena Wojcieszak (2024). Analysis of Web Browsing Data: A Guide. Social Science Computer Review.

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Corinna Oschatz, Teresa Gil-Lopez, Dylan Paltra, Sebastian Stier, Tanjev Schultz (2024). Social media posts as source for political news coverage inside and outside election campaigns: Examining effects on deliberative news media quality. Journalism.

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Marko Bachl, Elena Link, Frank Mangold, Sebastian Stier (2024). Search Engine Use for Health-Related Purposes: Behavioral Data on Online Health Information-Seeking in Germany. Health Communication.

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Nora Kirkizh, Roberto Ulloa, Sebastian Stier, Jürgen Pfeffer (2024). Predicting political attitudes from web tracking data: A machine learning approach. Journal of Information Technology & Politics.

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Sebastian Stier, Caterina Froio, Justin Chun-Ting Ho (2024). Mainstreaming the populist radical right? Online news exposure and voting behavior in the 2019 European Parliament election. European Political Science Review.

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Frank Mangold, Mareike Wieland, Sebastian Stier, Lukas Otto (2023). Neue Infrastrukturen für die Messung digitaler Mediennutzung. Publizistik.

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Corinna Oschatz, Marius Sältzer, Sebastian Stier (2023). Establishing standards for human-annotated samples applied in supervised machine learning: Evidence from a Monte Carlo simulation. Studies in Communication and Media.

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Julia Weiß, Sebastian Stier (2023). Die Verknüpfung von digitalen Verhaltensdaten und Umfragedaten. easy social sciences.

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Jürgen Maier, Corinna Oschatz, Sebastian Stier, Ingo Zettler (2023). A short scale to measure self-reported aversive personality in political elites. Journal of Personality Assessment.

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Nora Kirkizh, Caterina Froio, Sebastian Stier (2023). Issue trade-offs and the politics of representation: Experimental evidence from four European democracies. European Journal of Political Research.

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Johannes Breuer, Zoltan Kmetty, Mario Haim, Sebastian Stier (2023). User-centric approaches for collecting Facebook data in the 'post-API age': Experiences from two studies and recommendations for future research. Information, Communication & Society.

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Jürgen Maier, Sebastian Stier, Corinna Oschatz (2023). Are candidates rational when it comes to negative campaigning? Empirical evidence from three German candidate surveys. Party Politics.

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Sebastian Stier, Bernd Weiß, Timo Hartmann, Fabian Flöck, Johannes Breuer, Ines Schaurer, Mirjan Kummerow (2022). The role of the information environment during the first COVID-19 wave in Germany. Political Research Exchange.

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Damian Trilling, Juhi Kulshrestha, Claes De Vreese, Denis Halagiera, Jakub Jakubowski, Judith Möller, Cornelius Puschmann, Agnieszka Stępińska, Sebastian Stier, Cristian Vaccari (2022). Is sharing just a function of viewing? The sharing of political and non-political news on Facebook. Journal of Quantitative Description: Digital Media.

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Marius Sältzer, Sebastian Stier (2022). Die Bundestagswahl 2021 auf Twitter. easy social sciences.

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Henning Silber, Johannes Breuer, Christoph Beuthner, Tobias Gummer, Florian Keusch, Pascal Siegers, Sebastian Stier, Bernd Weiss (2022). Linking surveys and digital trace data: Insights from two studies on determinants of data sharing behavior. Journal of the Royal Statistical Society: Series A.

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Sebastian Stier, Frank Mangold, Michael Scharkow, Johannes Breuer (2022). Post Post-Broadcast Democracy? News Exposure in the Age of Online Intermediaries. American Political Science Review.

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David Schoch, Franziska Keller, Sebastian Stier, JungHwan Yang (2022). Coordination patterns reveal online political astroturfing across the world. Scientific Reports.

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Lennart Schürmann, Sebastian Stier (2022). Who represents the constituency? Online political communication by members of parliament in the German mixed-member electoral system. Legislative Studies Quarterly.

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Frank Mangold, Sebastian Stier, Michael Scharkow, Johannes Breuer (2022). The overstated generational gap in online news use? A consolidated infrastructural perspective. New Media & Society.

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Simon Richter, Sebastian Stier (2021). Learning about the unknown Spitzenkandidaten: The role of media exposure during the 2019 European Parliament elections. European Union Politics.

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Mario Haim, Johannes Breuer, Sebastian Stier (2021). Do news actually 'find me'? Using digital behavioral data to study the news-finds-me phenomenon. Social Media + Society.

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Michaela Maier, Carlos Jalali, Jürgen Maier, Alessandro Nai, Sebastian Stier (2021). When do parties put Europe in the centre? Evidence from the 2019 European Parliament election campaign. Politics.

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Corinna Oschatz, Sebastian Stier, Jürgen Maier (2021). Twitter in the News: An analysis of embedded tweets in political news coverage. Digital Journalism.

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Pu Yan, Ralph Schroeder, Sebastian Stier (2021). Is there a link between climate change scepticism and populism? An analysis of web tracking and survey data from Europe and the US. Information, Communication & Society.

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Sebastian Stier, Caterina Froio, Wolf J. Schünemann (2021). Going transnational? Candidates' transnational linkages on Twitter during the 2019 European Parliament elections. West European Politics.

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Sebastian Stier, Jürgen Maier, Corinna Oschatz (2021). Die Nutzung sozialer Medien durch Kandidaten im Bundestagswahlkampf 2017. Wahlen und Wähler.

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Sebastian Stier, Nora Kirkizh, Caterina Froio, Ralph Schroeder (2020). Populist attitudes and selective exposure to online news – A cross-country analysis combining web tracking and surveys. The International Journal of Press/Politics.

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Franziska Keller, David Schoch, Sebastian Stier, JungHwan Yang (2020). Political Astroturfing on Twitter: How to Coordinate a Disinformation Campaign. Political Communication.

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Sebastian Stier, Johannes Breuer, Pascal Siegers, Kjerstin Thorson (2020). Integrating Survey Data and Digital Trace Data: Key Issues in Developing an Emerging Field. Social Science Computer Review.

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Michael Scharkow, Frank Mangold, Sebastian Stier, Johannes Breuer (2020). How social network sites and other online intermediaries increase exposure to news. Proceedings of the National Academy of Sciences.

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Maria Becker, Marcus Müller, Wolf J. Schünemann, Stefan Steiger, Jörn Stegmeier, Sebastian Stier (2019). Multi-Method Discourse Analysis of Twitter Communication. Quantifying Approaches to Discourse for Social Scientists.

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Sebastian Stier (2019). Internetfreiheit in Europa. E-Government und Netzpolitik im europäischen Vergleich.

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Sebastian Stier, Andreas Jungherr (2019). Digitale Verhaltensdaten und Methoden der Computational Social Science in der politischen Kommunikationsforschung. Politik in der digitalen Gesellschaft.

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Andreas Jungherr, Ralph Schroeder, Sebastian Stier (2019). Digital media and the surge of political outsiders. Social Media + Society.

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Jan Philipp Rau, Sebastian Stier (2019). Die Echokammer-Hypothese: Fragmentierung der Öffentlichkeit und politische Polarisierung durch digitale Medien?. Zeitschrift für Vergleichende Politikwissenschaft.

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Sebastian Stier, Arnim Bleier, Malte Bonart, Fabian Mörsheim, Mahdi Bohlouli, Margarita Nizhegorodov, Lisa Posch, Jürgen Maier, Tobias Rothmund, Steffen Staab (2018). Systematically Monitoring Social Media. GESIS Papers 2018|04.

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Sebastian Stier, Wolf J. Schünemann, Stefan Steiger (2018). Of activists and gatekeepers. New Media & Society.

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Sebastian Stier, Arnim Bleier, Haiko Lietz, Markus Strohmaier (2018). Election Campaigning on Social Media: Politicians, Audiences, and the Mediation of Political Communication on Facebook and Twitter. Political Communication.

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Sebastian Stier, Lisa Posch, Arnim Bleier, Markus Strohmaier (2017). When populists become popular: comparing Facebook use by the right-wing movement Pegida and German political parties. Information, Communication & Society.

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Sebastian Stier (2017). Political Determinants of Media Freedom. Routledge Companion to Media and Human Rights.

Sebastian Stier (2017). Internet und Regimetyp. Springer VS, Wiesbaden.

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Sebastian Stier (2017). Internet diffusion and regime type: Temporal patterns in technology adoption. Telecommunications Policy.

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Keller Franziska B., David Schoch, Sebastian Stier, JungHwan Yang (2017). How to Manipulate Social Media: Analyzing Political Astroturfing Using Ground Truth Data from South Korea. Proceedings of the Eleventh International AAAI Conference on Web and Social Media.

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Wolf J. Schünemann, Stefan Steiger, Sebastian Stier (2016). Transnationalisierung politischer Öffentlichkeit über Soziale Medien – ein Politikfeldvergleich. Zeitschrift für Vergleichende Politikwissenschaft.

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Sebastian Stier (2016). Studying the Role of Elites in U.S. Political Twitter Debates. Proceedings of the 6th Microposts Workshop @WWW 2016.

Sebastian Stier (2016). Partisan Framing of Political Debates on Twitter. Websci’ 16: Proceedings of the 8th International ACM Web Science Conference.

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Wolf J. Schünemann, Stefan Steiger, Sebastian Stier (2015). The Net Neutrality Debate on Twitter. Internet Policy Review.

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Sebastian Stier (2015). Strukturbedingungen im Online-Wahlkampf: USA und Deutschland im Vergleich. Die US-Präsidentschaftswahl 2012, Analysen der Politik- und Kommunikationswissenschaft.

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Sebastian Stier (2015). Political Determinants of E-Government Performance Revisited: Comparing Democracies and Autocracies. Government Information Quarterly.

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Sebastian Stier (2015). Democracy, Autocracy, and the News: The Impact of Regime Type on Media Freedom. Democratization.

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Sebastian Stier (2012). Die Bedeutung des Internets als Medium der politischen Kommunikation in Deutschland und den USA – eine vergleichende Fallstudie. Lit-Verlag, Münster.

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