Dr. G. (Gijs) Schumacher
Faculty of Social and Behavioural Sciences
Programme group: Challenges to Democratic Representation
Visiting address
- Nieuwe Achtergracht 166
- Room number: B10.08
Postal address
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Postbus 15578
1001 NB Amsterdam
Contact details
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About
I am an Associate Professor in Political Science. My research is about political parties, populism, personality and emotions. For more information go to my personal website.
I am also co-director of the Hot Politics Lab, a lab specializing in the role of emotions, personality and strategy in politics.
With four colleagues I am co-founder and regular contributor to a Dutch political science blog stukroodvlees.nl.
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Publications
- refereed (50)
- academic (12)
- professional (5)
- popular scientific (2)
- conference contributions (1)
- recognitions (19)
- supervised theses (4)
- datasets (20)
2025
- Bakker, B. N., & Schumacher, G. (2025). Using measures of psychophysiological and neural activity to advance understanding of psychological processes in politics. In E. C. Busby, C. F. Karpowitz, & C. J. Wong (Eds.), Handbook of Innovations in Political Psychology Edward Elgar. Advance online publication. https://doi.org/10.31234/osf.io/dcpt8
2024
Barnehl, H., & Schumacher, G. (2024). Media capture, captured: a new computational methodology to measure deteriorating media freedom. Democratization, 31(7), 1536-1563 . https://doi.org/10.1080/13510347.2024.2331694 [details]- Dubel, R., Schumacher, G., Homan, M. D., Peterson, D., & Bakker, B. N. (2024). Replicating and Extending Soroka, Fournier, and Nir: Negative News Increases Arousal and Negative Affect. Media and Communication, 12, Article 7807. https://doi.org/10.17645/mac.7807 [details]
- Pipal, C., Bakker, B. N., Schumacher, G., & van der Velden, M. A. C. G. (2024). Tone in politics is not systematically related to macro trends, ideology, or experience. Scientific Reports, 14, Article 3241. https://doi.org/10.1038/s41598-023-49618-9 [details]
- Schumacher, G., Homan, M. D., Rebasso, I., Fasching, N., Bakker, B. N., & Rooduijn, M. (2024). Establishing the validity and robustness of facial electromyography measures for political science. Politics and the Life Sciences, 43(2), 198-215. https://doi.org/10.1017/pls.2023.26 [details]
- van de Wardt, M., Pilet, J.-B., Schumacher, G., & van Witteloostuijn, A. (2024). Contagion From Abroad: How Party Entry in Western Europe is Influenced by Party Family Members Abroad, 1961–2016. Comparative Political Studies, 57(11), 1837-1869. https://doi.org/10.1177/00104140231204228 [details]
2023
- Homan, M. D., Schumacher, G., & Bakker, B. N. (2023). Facing emotional politicians: Do emotional displays of politicians evoke mimicry and emotional contagion? Emotion, 23(6), 1702-1713. https://doi.org/10.1037/emo0001172 [details]
2022
- Schoonvelde, M., Pipal, C., & Schumacher, G. (2022). Text as Data in Political Psychology. In M. Dehghani, & R. L. Boyd (Eds.), Handbook of Language Analysis in Psychology (pp. 189-206). The Guilford Press. https://doi.org/10.31219/osf.io/p5mdq
- Schumacher, G., Rooduijn, M., & Bakker, B. N. (2022). Hot populism? Affective responses to antiestablishment rhetoric. Political Psychology, 43(5), 851-871. https://doi.org/10.1111/pops.12832 [details]
2021
- Bakker, B. N., Schumacher, G., & Rooduijn, M. (2021). Hot politics? Affective responses to political rhetoric. American Political Science Review, 115(1), 150-164. https://doi.org/10.1017/S0003055420000519 [details]
- Bakker, B. N., Schumacher, G., & Rooduijn, M. (2021). The populist appeal: Personality and anti-establishment communication. The Journal of Politics, 83(2), 589-601. https://doi.org/10.1086/710014 [details]
- Ennser-Jedenastik, L., & Schumacher, G. (2021). What parties want from their leaders: How office achievement trumps electoral performance as a driver of party leader survival. European Journal of Political Research, 60(1), 114-130. https://doi.org/10.1111/1475-6765.12391 [details]
2020
- Bakker, B. N., Schumacher, G., & Homan, M. D. (2020). Yikes! Are we disgusted by politicians? Politics and the Life Sciences, 39(2), 135-153. https://doi.org/10.1017/pls.2020.16 [details]
- Bakker, B. N., Schumacher, G., Gothreau, C., & Arceneaux, K. (2020). Conservatives and liberals have similar physiological responses to threats. Nature Human Behaviour, 4(6), 613–621. https://doi.org/10.1038/s41562-020-0823-z [details]
- Giger, N., & Schumacher, G. (2020). Bringing party organization back in: a comparative analysis of party representation in Europe. Political Science Research and Methods, 8(4), 692-706. https://doi.org/10.1017/psrm.2019.54 [details]
- Kuijpers, D., & Schumacher, G. (2020). Don't Mention the War versus Escalating Commitment: Political Party Responses to Military Casualties. Foreign Policy Analysis, 16(4), 587-607. https://doi.org/10.1093/fpa/oraa003
- Schumacher, G., & Öhberg, P. (2020). How do politicians respond to opinion polls? An experiment with Swedish politicians. Research and Politics, 7(3). https://doi.org/10.1177/2053168020955106 [details]
- Traber, D., Schoonvelde, M., & Schumacher, G. (2020). Errors have been made, others will be blamed: Issue engagement and blame shifting in prime minister speeches during the economic crisis in Europe. European Journal of Political Research, 59(1), 45-67. https://doi.org/10.1111/1475-6765.12340 [details]
2019
- Schoonvelde, M., Brosius, A., Schumacher, G., & Bakker, B. N. (2019). Liberals lecture, conservatives communicate: Analyzing complexity and ideology in 381,609 political speeches. PLoS ONE, 14(2), Article e208450. https://doi.org/10.1371/journal.pone.0208450 [details]
- Schoonvelde, M., Schumacher, G., & Bakker, B. N. (2019). Friends With Text as Data Benefits: Assessing and Extending the Use of Automated Text Analysis in Political Science and Political Psychology. Journal of Social and Political Psychology, 7(1), 124-143. https://doi.org/10.5964/jspp.v7i1.964 [details]
- Schumacher, G., & Zettler, I. (2019). House of Cards or West Wing? Self-reported HEXACO Traits of Danish Politicians. Personality and Individual Differences, 141, 173-181. https://doi.org/10.1016/j.paid.2018.12.028 [details]
- Schumacher, G., Hansen, D., van der Velden, M. A. C. G., & Kunst, S. (2019). A new dataset of Dutch and Danish party congress speeches. Research & Politics, 6(2). https://doi.org/10.1177/2053168019838352 [details]
2018
- Lehrer, R., & Schumacher, G. (2018). Governator vs. Hunter and Aggregator: A simulation of party competition with vote-seeking and office-seeking rules. PLoS ONE, 13(2), Article e0191649. https://doi.org/10.1371/journal.pone.0191649 [details]
- Marx, P., & Schumacher, G. (2018). Do Poor Citizens Vote for Redistribution, against Immigration, or against the Establishment? A Conjoint Experiment in Denmark. Scandinavian Political Studies, 41(3), 263-282. https://doi.org/10.1111/1467-9477.12119 [details]
- Schumacher, G., & Elmelund-Præstekær, C. (2018). Party performance explains disagreement between politicians and their parties. West European Politics, 41(2), 329-349. https://doi.org/10.1080/01402382.2017.1359013 [details]
- Schumacher, G., & Giger, N. (2018). Do leadership-dominated parties change more? Journal of Elections, Public Opinion and Parties, 28(3), 349-360. https://doi.org/10.1080/17457289.2017.1403920 [details]
- de Vries, E., Schoonvelde, M., & Schumacher, G. (2018). No Longer Lost in Translation: Evidence that Google Translate Works for Comparative Bag-of-Words Text Applications. Political Analysis, 26(4), 417-430. https://doi.org/10.31219/osf.io/cuxha, https://doi.org/10.1017/pan.2018.26 [details]
- van der Velden, M., Schumacher, G., & Vis, B. (2018). Living in the Past or Living in the Future? Analyzing Parties’ Platform Change In Between Elections, The Netherlands 1997–2014. Political Communication, 35(3), 393-412. https://doi.org/10.1080/10584609.2017.1384771 [details]
2017
- Polk, J., Rovny, J., Bakker, R., Edwards, E., Hooghe, L., Jolly, S., Koedam, J., Kostelka, F., Marks, G., Schumacher, G., Steenbergen, M., Vachudova, M., & Zilovic, M. (2017). Explaining the salience of anti-elitism and reducing political corruption for political parties in Europe with the 2014 Chapel Hill Expert Survey data. Research & Politics, 4(1). https://doi.org/10.1177/2053168016686915 [details]
- Schumacher, G. (2017). A future EU: An inevitably emotional party animal. In T. Beck, & G. Underhill (Eds.), Quo Vadis? Identity, policy and the future of the European Union (pp. 73-78). CEPR Press. https://voxeu.org/content/quo-vadis-identity-policy-and-future-european-union [details]
- Schumacher, G., & Giger, N. (2017). Who Leads the Party? On membership size, selectorates and party oligarchy. Political Studies, 65(S1), 162-181. https://doi.org/10.1177/0032321716667957 [details]
2016
- Bakker, B. N., Klemmensen, R., Nørgaard, A. S., & Schumacher, G. (2016). Stay loyal or exit the party? How openness to experience and extroversion explain vote switching. Political Psychology, 37(3), 419-429. https://doi.org/10.1111/pops.12257 [details]
- Bakker, B. N., Rooduijn, M., & Schumacher, G. (2016). The psychological roots of populist voting: Evidence from the United States, the Netherlands and Germany. European Journal of Political Research, 55(2), 302-320. https://doi.org/10.1111/1475-6765.12121 [details]
- Marx, P., & Schumacher, G. (2016). The effect of economic change and elite framing on support for welfare state retrenchment: a survey experiment. Journal of European Social Policy, 26(1), 20-31. https://doi.org/10.1177/0958928715621711 [details]
- Schumacher, G., & van Kersbergen, K. (2016). Do mainstream parties adapt to the welfare chauvinism of populist parties? Party Politics, 22(3), 300-312. https://doi.org/10.1177/1354068814549345 [details]
2015
- Baggesen Klitgaard, M., Schumacher, G., & Soentken, M. (2015). The partisan politics of institutional welfare state reform. Journal of European Public Policy, 22(7), 948-966. https://doi.org/10.1080/13501763.2014.978355 [details]
- Elmelund-Præstekær, C., Baggesen Klitgaard, M., & Schumacher, G. (2015). What wins public support? Communicating or obfuscating welfare state retrenchment. European Political Science Review, 7(3), 427-450. https://doi.org/10.1017/S1755773914000253 [details]
- Ennser-Jedenastik, L., & Schumacher, G. (2015). Why Some Leaders Die Hard (and Others Don’t): Party Goals, Party Institutions, and How They Interact. In W. Cross, & J.-B. Pilet (Eds.), The Politics of Party Leadership: A Cross-National Perspective (pp. 107-127). Oxford University Press. https://doi.org/10.1093/acprof:oso/9780198748984.003.0007 [details]
- Helboe Pedersen, H., & Schumacher, G. (2015). Do Leadership Changes Improve Electoral Performance? In W. Cross, & J.-B. Pilet (Eds.), The Politics of Party Leadership: A Cross-National Perspective (pp. 149-164). Oxford University Press. [details]
- Schumacher, G. (2015). When does the left do the right thing? A study of party position change on welfare policies. Party Politics, 21(1), 68-79. https://doi.org/10.1177/1354068812470505 [details]
- Schumacher, G., van de Wardt, M., Vis, B., & Baggesen Klitgaard, M. (2015). How aspiration to office conditions the impact of government participation on party platform change. American Journal of Political Science, 59(4), 1040-1054. https://doi.org/10.1111/ajps.12174 [details]
2014
- Elmelund-Præstekær, C., & Schumacher, G. (2014). Én for alle og alle for én? Mønstre i og effekter af partiintern uenighed blandt folketingskandidaterne ved 2011-valget. Politica : tidsskrift for politisk videnskab, 46(3), 296-322. http://politica.dk/fileadmin/politica/Dokumenter/politica_46_3/elmelund_og_schumacher.pdf [details]
2013
- Manow, P., van Kersbergen, K., & Schumacher, G. (2013). De-industrialization and the expansion of the welfare state: a reassessment. In A. Wren (Ed.), The political economy of the service transition (pp. 227-247). Oxford University Press. https://doi.org/10.1093/acprof:oso/9780199657285.003.0007
- Marx, P., & Schumacher, G. (2013). Will to power? Intra-party conflict in social democratic parties and the choice for neoliberal policies in Germany, the Netherlands and Spain (1980-2010). European Political Science Review, 5(1), 151-173 . https://doi.org/10.1017/S1755773912000070
- Schumacher, G., & Rooduijn, M. (2013). Sympathy for the ‘devil’? Voting for populists in the 2006 and 2010 Dutch general elections. Electoral Studies, 32(1), 124-133. https://doi.org/10.1016/j.electstud.2012.11.003 [details]
- Schumacher, G., Vis, B., & van Kersbergen, K. (2013). Political parties’ welfare image, electoral punishment and welfare state retrenchment. Comparative European Politics, 11(1), 1-21. https://doi.org/10.1057/cep.2012.5
- Schumacher, G., de Vries, C. E., & Vis, B. (2013). Why do parties change position? Party organization and environmental incentives. The Journal of Politics, 75(2), 464-477. https://doi.org/10.1017/S0022381613000145 [details]
2012
- Schumacher, G. (2012). ‘Marx’ or the market? Intra-party power and social democratic welfare state retrenchment. West European Politics, 35(5). https://doi.org/10.1080/01402382.2012.706409
- Schumacher, G., & Vis, B. (2012). Why do social democrats retrench the welfare state? A simulation. Journal of Artificial Societies and Social Simulation, 15(3), Article 4. https://doi.org/10.18564/jasss.1959
2011
- Schumacher, G. (2011). Signalling a change of heart? How parties’ short-term ideological shifts explain welfare state reform. Acta Politica, 46(4), 331-352. https://doi.org/10.1057/ap.2011.17
2023
- Schumacher, G. (2023). On quasi-messianism and the need for enchantment. In C. Green-Pedersen, C. Jensen, & B. Vis (Eds.), No Normal Science!: Festschrift for Kees van Kersbergen (pp. 230-240). Politica. https://doi.org/10.31234/osf.io/umc73 [details]
2020
- Bakker, B. N. (Author), & Schumacher, G. (Author). (2020). #HotPoliticsLab corona-crisis-series: Talk by Professor Stuart Soroka. Digital or Visual Products, #Hot Politics Lab.
2017
- Bakker, B. (Author), Rooduijn, M. (Author), & Schumacher, G. (Author). (2017). Response to Schimpf and Schoen’s Response to Bakker, Rooduijn and Schumacher (2016). Web publication or website, OSFHOME. http://osf.io/5u8t6 [details]
2016
- Bakker, B. (Author), Klemmensen, R. (Author), Nørgaard, A. S. (Author), & Schumacher, G. (Author). (2016). Staying loyal or leaving the party? How open and extrovert personality traits help explain vote switching. Web publication or website, LSE. http://blogs.lse.ac.uk/politicsandpolicy/55285-2/ [details]
- Bakker, B. (Author), Rooduijn, M. (Author), & Schumacher, G. (Author). (2016). Donald Trump’s support comes from two distinct groups: authoritarians who oppose immigration and anti-establishment voters. Web publication or website, LSE. http://blogs.lse.ac.uk/usappblog/2016/09/02/donald-trumps-support-comes-from-two-distinct-groups-authoritarians-who-oppose-immigration-and-anti-establishment-voters/ [details]
- Bakker, B. (Author), Rooduijn, M. (Author), & Schumacher, G. (Author). (2016). Het was de boze, blanke man, in het stemhokje, met het stempotlood. Web publication or website, Stuk Rood Vlees. http://stukroodvlees.nl/het-de-boze-blanke-man-het-stemhokje-met-het-stempotlood/ [details]
- Bakker, B. (Author), Rooduijn, M. (Author), & Schumacher, G. (Author). (2016). Persoonlijkheid en de twee routes die steun voor Trump verklaren. Web publication or website, De Kennis van Nu. http://www.dekennisvannu.nl/site/artikel/Persoonlijkheid-en-de-twee-routes-die-steun-voor-Trump-verklaren/8616 [details]
- Bakker, B. (Author), Rooduijn, M. (Author), & Schumacher, G. (Author). (2016). Persoonlijkheid en de twee routes die steun voor Trump verklaren. Web publication or website, Stuk Rood Vlees. http://stukroodvlees.nl/persoonlijkheid-en-de-twee-routes-die-steun-voor-trump-verklaren/ [details]
- Bakker, B. (Author), Rooduijn, M. (Author), & Schumacher, G. (Author). (2016). Raken we opgewonden van de politiek?. Web publication or website, Stuk Rood Vlees. http://stukroodvlees.nl/raken-opgewonden-van-de-politiek/ [details]
- Bakker, B. N. (Author), Schumacher, G. (Author), & Rooduijn, M. (Author). (2016). How 'deplorable' are Trump voters? What the data reveal. Web publication or website https://www.newsweek.com/how-deplorable-are-trump-voters-what-data-reveals-498021 [details]
- Greene, Z. (Author), Ceron, A. (Author), Schumacher, G. (Author), & Fazekas, Z. (Author). (2016). The Nuts and Bolts of Automated Text Analysis. Comparing Different Document Pre-Processing Techniques in Four Countries. Web publication or website, OSFHOME. https://osf.io/4z5z3/ [details]
- Schumacher, G., Schoonvelde, M., Traber, D., Dahiya, T., & de Vries, E. (2016). EUSpeech: A New Dataset of EU Elite Speeches. In D. Širinić, J. Šnajder, Z. Fazekas, & S. Bevan (Eds.), PolText 2016: The International Conference on the Advances in Computational Analysis of Political Text : proceedings of the conference : 14-16 July 2016, Dubrovnik, Croatia (pp. 75-80). University of Zagreb, Faculty of Political Science. http://takelab.fer.hr/poltext2016/PolText2016-proceedings.pdf [details]
2023
- Bomm, L., Bakker, B., & Schumacher, G. (2023). Immigratie: belangrijk, maar minder bedreigend en zorgwekkend dan andere issues. Web publication or website, Stuk Rood Vlees. https://stukroodvlees.nl/immigratie-belangrijk-maar-minder-bedreigend-en-zorgwekkend-dan-andere-issues/ [details]
2021
- Schumacher, G., Bakker, B., Rooduijn, M., & Homan, M. (2021). Politiek: Zweten, fronsen en walgen. Sociologie Magazine, 29(4), 6-9. [details]
2016
- Bakker, B. (Author), Rooduijn, M. (Author), & Schumacher, G. (Author). (2016). Experimentje in een tentje – verslag van Lowlands Science. Web publication or website [details]
- Bakker, B., Rooduijn, M., & Schumacher, G. (2016). The Populist Personality. In J. Sides, & H. Farrell (Eds.), The Science of Trump: Explaining the Rise of an Unlikely Candidate: Revised and updated essays from the Washington Post's Monkey Cage blog The Monkey Cage. [details]
2013
- Rooduijn, M., & Schumacher, G. (2013). De zwakte van het midden. Socialisme en Democratie, 70(5), 37-39. [details]
2017
- Bakker, B. N. (Author), Rooduijn, M. (Author), & Schumacher, G. (Author). (2017). In en uit de politieke bubbel. Web publication or website, De Groene Amsterdammer. https://www.groene.nl/artikel/in-en-uit-de-politieke-bubbel
2015
- Bakker, B. (Author), Rooduijn, M. (Author), & Schumacher, G. (Author). (2015). De persoonlijkheid van populistische kiezers. Web publication or website, Stuk Rood Vlees. http://stukroodvlees.nl/persoonlijkheid/de-persoonlijkheid-van-populistische-kiezers/ [details]
2015
- Bakker, B. N., Rooduijn, M., & Schumacher, G. (2015). Personality and populism: Refining the theory. Abstract from Dutch Political Psychology conference, Amsterdam.
Prize / grant
- Bakker, B. & Schumacher, G. (2022). Best paper award.
- Bakker, B. & Schumacher, G. (2022). Marie Curie Doctoral Network: Interdisciplinary Perspectives on the Politics of Adolescence and Democracy’. https://www.ippad.eu/
- Bakker, B. & Schumacher, G. (2019). Association for Politics and the Life Sciences Grant: “Yikes! Are we disgusted by politicians”.
- Schumacher, G. (2019). KNAW Early Career Award. https://www.uva.nl/shared-content/faculteiten/nl/faculteit-der-maatschappij-en-gedragswetenschappen/nieuws/2019/11/knaw-early-career-award-v…
- Schumacher, G. (2017). Politics and Emotions Investigated Comparatively (ERC Starting Grant).
Media appearance
- Schumacher, G. (23-10-2024). Is ‘fascist’ alleen maar een scheldwoord voor Donald Trump, of is hij het ook echt? ‘Het is zeer zorgwekkend’ [Web] De Morgen. Is ‘fascist’ alleen maar een scheldwoord voor Donald Trump, of is hij het ook echt? ‘Het is zeer zorgwekkend’. https://www.demorgen.be/nieuws/is-fascist-alleen-maar-een-scheldwoord-voor-donald-trump-of-is-hij-het-ook-echt-het-is-zeer-zorgwekkend~b7961…
- Schumacher, G. (14-11-2023). Nog acht dagen twijfelen: waarom zweven zoveel kiezers nog? [Web] RTL Nieuws. Nog acht dagen twijfelen: waarom zweven zoveel kiezers nog?. https://www.rtlnieuws.nl/nieuws/nederland/artikel/5418790/tweede-kamerverkiezingen-zwevende-kiezer-twijfel-kieswijzer
- Schumacher, G. & Rooduijn, M. (18-09-2020). UvA-wetenschappers vinden onderbuikgevoelens op de Tilburgse kermis [Web] UNIVERS - Independent news source of Tilburg University. UvA-wetenschappers vinden onderbuikgevoelens op de Tilburgse kermis. https://universonline.nl/nieuws/2020/09/18/uva-wetenschappers-vinden-onderbuikgevoelens-op-de-tilburgse-kermis/
- Rooduijn, M. & Schumacher, G. (25-02-2020). Onderzoeker: ‘Wie ‘minder instemmend’ is, heeft een zwak voor populisme’ [Print] De Morgen. Onderzoeker: ‘Wie ‘minder instemmend’ is, heeft een zwak voor populisme’. https://www.demorgen.be/politiek/onderzoeker-wie-minder-instemmend-is-heeft-een-zwak-voor-populisme~b6af0ead/
- Arceneaux, K., Bakker, B., Gothreau, C. & Schumacher, G. (20-06-2019). We Tried to Publish a Replication of a Science Paper in Science. The Journal Refused [Web] Slate. We tried to publish a replication of a science paper in science. The journal refused. https://slate.com/technology/2019/06/science-replication-conservatives-liberals-reacting-to-threats.html?via=recirc_recent
- Schumacher, G. (08-03-2019). Voor ontkenners en twijfelaars zijn de gortdroge feiten niet genoeg [Print] NRC Handelsblad. Voor ontkenners en twijfelaars zijn de gortdroge feiten niet genoeg. https://advance.lexis.com/document/?pdmfid=1516831&crid=b6a98642-7c43-4baf-b7db-04096821024b&pddocfullpath=%2Fshared%2Fdocument%2Fnews%2Furn…
- Schumacher, G. (07-03-2019). Voor ontkenners en twijfelaars zijn de gortdroge feiten niet genoeg [Web] NRC. Voor ontkenners en twijfelaars zijn de gortdroge feiten niet genoeg. https://www.nrc.nl/nieuws/2019/03/07/voor-ontkenners-en-twijfelaars-zijn-de-gortdroge-feiten-niet-genoeg-a3952528
- Schumacher, G. (07-02-2019). ’Linkse politicus gebruikt moeilijke woorden’ De Telegraaf. ’Linkse politicus gebruikt moeilijke woorden’. https://www.telegraaf.nl/nieuws/3121666/linkse-politicus-gebruikt-moeilijke-woorden
- Schumacher, G. (29-01-2019). Stembusgang Provinciale Staten gaat vooral over landelijke politiek [Print] Het Financieele Dagblad. Stembusgang Provinciale Staten gaat vooral over landelijke politiek. https://newsdesk.moreover.com/click/?p=aHR0cHM6Ly9uZXdzZGVzay5tb3Jlb3Zlci5jb20vYXJ0aWNsZS8zODM4MDg1OTcyNi5odG1sP2NpZD1NVEE0TURReSZ1aWQ9TVRZe…
- Bakker, B. N. & Schumacher, G. (12-05-2017). Regeert de onderbuik echt?. Regeert de onderbuik echt? (Noordhollands Dagblad).
- Bakker, B., Rooduijn, M. & Schumacher, G. (09-03-2017). De Onderbuik van Nederland [Television] De Kennis van Nu. De Kennis van Nu: de Onderbuik van Nederland. https://www.npo.nl/de-kennis-van-nu/09-03-2017/VPWON_1266698
- Bakker, B., Schumacher, G. & Rooduijn, M. (16-12-2016). Een verhoogde hartslag op Lowlands [Print] Spui magazine. Een verhoogde hartslag op Lowlands. https://issuu.com/uva-alumni/docs/spui45_issuu
- Bakker, B., Schumacher, G. & Rooduijn, M. (03-11-2016). De wetenschap van het populisme [Television] NTR: De Kennis van Nu. De Kennis van Nu: De wetenschap van het populisme. http://www.npo.nl/de-kennis-van-nu/03-11-2016/VPWON_1263064
- Bakker, B. N., Schumacher, G. & Rooduijn, M. (24-08-2016). Lowlands Science 2016: Pijn, porno en politiek [Web] New Scientist. Lowlands Science. https://www.youtube.com/watch?v=-s86g84r3ag&feature=youtu.be
2024
- Homan, M. D. (2024). Citizens’ affective, cognitive and behavioral responses to the emotional displays of politicians. [Thesis, fully internal, Universiteit van Amsterdam]. [details]
- Pipal, C. (2024). Blueprints and fingerprints: Politicians' use of emotional appeals in European democracies. [Thesis, fully internal, Universiteit van Amsterdam]. [details]
2023
- Rebasso, I. (2023). Feeling within reason: How appraisals shape emotional responses to politics. [Thesis, fully internal, Universiteit van Amsterdam]. [details]
- Rohrbach, T. (2023). Media-based mechanisms of gendered evaluations of politicians. [Thesis, externally prepared, Universiteit van Amsterdam, Université de Fribourg]. [details]
2024
- Schumacher, G. (2024). Empathic Concern and Perspective-Taking have opposite effects on affective polarization. Harvard Dataverse. https://doi.org/10.7910/dvn/oxmvie
2023
- van de Wardt, M., Pilet, J.-B., Schumacher, G., Van Witteloostuijn, A. & Van De Wardt, M. (2023). Replication Data for: Contagion from abroad. How party entry in Western Europe is influenced by party family members abroad, 1961-2016. Harvard Dataverse. https://doi.org/10.7910/dvn/jzqlmf
2020
- Schumacher, G. (2020). Replication Data for "How do Politicians Respond to Opinion Polls? An Experiment with Swedish Politicians.". Harvard Dataverse. https://doi.org/10.7910/dvn/enehle
- Bakker, B., Schumacher, G. & Rooduijn, M. (2020). Replication Data for: "Hot politics? Affective responses to political rhetoric". Harvard Dataverse. https://doi.org/10.7910/dvn/lcwr7g
2019
- Schumacher, G. (2019). Raw files (congress speeches Denmark). Harvard Dataverse. https://doi.org/10.7910/dvn/v3fhi3
- Schumacher, G. (2019). Raw files (congress speeches Netherlands). Harvard Dataverse. https://doi.org/10.7910/dvn/pg9pyk
- Schumacher, G. (2019). Replication Data for: A New Dataset of Dutch and Danish Party Congress Speeches. Harvard Dataverse. https://doi.org/10.7910/dvn/a3no2g
- Bakker, B., Schumacher, G. & Rooduijn, M. (2019). Replication Data for: "The Populist Appeal: Personality and Anti-establishment Communication". Harvard Dataverse. https://doi.org/10.7910/dvn/hjsqnl
- Schumacher, G., Schoonvelde, M., Traber, D., Goyal, T. & de Vries, E. (2019). EUSpeech: A New Dataset of EU Elite Speeches (Version 1.4). Harvard Dataverse. https://doi.org/10.7910/dvn/gkabnu
2018
- Kunst, S., Hansen, D., Schumacher, G. J. S. & Van Der Velden, M. A. C. G. (8-10-2018). Dataset of Dutch and Danish Party Congress Speeches (1946-2017). Harvard Dataverse. https://doi.org/10.7910/dvn/sfzi8o
- De Vries, E., Schoonvelde, M. & Schumacher, G. (14-4-2018). Replication Data for: No Longer Lost in Translation: Evidence that Google Translate Works for Comparative Bag-of-Words Text Applications. Harvard Dataverse. https://doi.org/10.7910/dvn/vkmy6n
- Schoonvelde, M., Brosius, A., Schumacher, G. & Bakker, B. (2018). Replication Data for: Liberals lecture, conservatives communicate.. Harvard Dataverse. https://doi.org/10.7910/dvn/s4iz8k
2017
- Lehrer, R. & Schumacher, G. J. S. (7-11-2017). Analyses Evolutionary Models. Harvard Dataverse. https://doi.org/10.7910/dvn/cx6bkt
- Lehrer, R. & Schumacher, G. J. S. (7-11-2017). Evolutionary Single Rule Models (No Analysis). Harvard Dataverse. https://doi.org/10.7910/dvn/m5qyvv
- Schumacher, G. J. S. & Lehrer, R. (7-11-2017). Evolutionary Simulations (No Analysis). Harvard Dataverse. https://doi.org/10.7910/dvn/qxwx4q
- Schumacher, G. J. S. & Lehrer, R. (7-11-2017). Analyses Single Rule Models. Harvard Dataverse. https://doi.org/10.7910/dvn/x9kkqw
2016
- Schumacher, G., Schoonvelde, M., Dahiya, T. & de Vries, E. (13-7-2016). EUSpeech. Harvard Dataverse. https://doi.org/10.7910/DVN/XPCVEI
- Schumacher, G. J. S., Schoonvelde, M., Vries, E. & Goyal, T. (17-6-2016). A New Dataset of EU Elite Speeches. Harvard Dataverse. https://doi.org/10.7910/dvn/xpcvei
2015
- Giger, N. & Schumacher, G. (16-12-2015). Integrated Party Organization Dataset (IPOD). Harvard Dataverse. https://doi.org/10.7910/DVN/PE8TWP
- Bakker, R., Edwards, E., Hooghe, L., Jolly, S., Koedam, J., Kostelka, F., Marks, G., Polk, J., Rovny, J., Schumacher, G., Steenbergen, M., Vachudova, M., Zilovic, M. & de Vries-Netjes, C. (2015). 1999-2019 Chapel Hill Expert Survey (CHES) trend file. Universiteit van Amsterdam. https://www.chesdata.eu/1999-2019chestrend
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Barnehl, H., & Schumacher, G. (2024). Media capture, captured: a new computational methodology to measure deteriorating media freedom. Democratization, 31(7), 1536-1563 .