How populist are parties? : measuring degrees of populism in party manifestos using supervised machine learning

dc.contributor.authorDI COCCO, Jessica
dc.contributor.authorMONECHI, Bernardo
dc.date.accessioned2021-10-25T12:47:18Z
dc.date.available2021-10-25T12:47:18Z
dc.date.issued2022
dc.descriptionPublished online: 15 October 2021
dc.description.abstractOne of the main challenges in comparative studies on populism concerns its temporal and spatial measurements within and between a large number of parties and countries. Textual analysis has proved useful for these purposes, and automated methods can further improve research in this direction. Here, we propose a method to derive a score of parties’ levels of populism using supervised machine learning to perform textual analysis on national manifestos. We illustrate the advantages of our approach, which allows for measuring populism for a vast number of parties and countries without resource-intensive human-coding processes and provides accurate, updated information for temporal and spatial comparisons of populism. Furthermore, our method allows for obtaining a continuous score of populism, which ensures more fine-grained analyses of the party landscape while reducing the risk of arbitrary classifications. To illustrate the potential contribution of this score, we use it as a proxy for parties’ levels of populism, analyzing average trends in six European countries from the early 2000s for nearly two decades.en
dc.identifier.citationPolitical analysis, 2022, Vol. 30, No. 3, pp. 311-327en
dc.identifier.doi10.1017/pan.2021.29
dc.identifier.endpage327
dc.identifier.issue3
dc.identifier.startpage311
dc.identifier.urihttps://hdl.handle.net/1814/72839
dc.identifier.volume30
dc.language.isoenen
dc.orcid.uploadtrue*
dc.publisherCambridge University Pressen
dc.relation.ispartofPolitical analysisen
dc.rightsinfo:eu-repo/semantics/openAccessen
dc.rights.licenseAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectPopulismen
dc.subjectTextual analysisen
dc.subjectText-as-dataen
dc.subjectPolitical partiesen
dc.subjectComputational politicsen
dc.titleHow populist are parties? : measuring degrees of populism in party manifestos using supervised machine learningen
dc.typeArticleen
dspace.entity.typePublication
eui.subscribe.skiptrue
person.identifier.orcid0000-0001-8355-6730
person.identifier.other46510
relation.isAuthorOfPublication6d2aa228-6f99-44cf-ad12-4b46fae14810
relation.isAuthorOfPublication.latestForDiscovery6d2aa228-6f99-44cf-ad12-4b46fae14810
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