Yani Kartalis (ICS), “Who breaks the ‘Spiral of Silence’? Users’ personality behind social networking ties of political expression in Spain” (6th April, 2017)

Yani presented a paper on political expression on social media. Here’s the abstract:

Studies have indicated the importance of Social Media in modern day politics. Participation in the online political deliberation process is becoming a vital part of forming and manipulating offline opinions and behaviors. Yet, little is known about what kind of people decide to participate and voice political opinions in online contexts. In this study, by creating a unique database through the use of a natural language processing approach, I demonstrate that the personality of the user plays a crucial role. Using Twitter’s API access methods I crawled the accounts of three different kinds of users, namely political science students, random users and politicians. Building on the existing literature on machine learning techniques, I used their social media textual footprints to identify personality effects on the decision to participate and express political views in Social Networking Sites. The results confirmed the relevance of personality and identified individual effects of each personality trait according to the Big 5 personality model. More importantly however, the study adds to the increasing number of scientific efforts that demonstrate the possibilities of automated data collection techniques as a valid tool for designing future research.





Our 2016 publications

2016 was a pretty good year for our research group in terms of publications. Members of SPARC authored or co-authored:

  • 25 journal articles (including 16 in top 25% Scopus journals);
  • 20 chapters in edited volumes (including 11 in A-list publishers, including Routledge, Palgrave, Oxford University Press, Springer, Brill, or Peter Lang);
  • Three books and two special issues of journals.

Not bad… Here’s the full list:


Aguiar- Conraria, L., Magalhães, P.C. & Vanberg, Christoph A. (2016). Experimental evidence that quorum rules discourage turnout and promote election boycotts. Experimental Economics, 19 (4), 886-909 (Published online 11 November 2015). doi 10.1007/s10683-015-9473-9. Link permanente: http://hdl.handle.net/10451/25114

Costa-Lopes, R., Vala, J., Judd, C. M. (2016). Intergroup Relations and Fundamental Dimensions of Social Judgment. Psique. 12, 11-24. Link permanente: http://journals.ual.pt/psique/wp-content/uploads/2015/12/Psique-XII-2016.pdf

Fernandes, J. M. & Magalhães , P. C. (2016). Government survival in semi-presidential regimes. European Journal of Political Research. Vol. 55. 1, pp. 61-80. Doi: 10.1111/1475-6765.12116 Link permanente: http://hdl.handle.net/10451/22810

Frings, Daniel, Collins, Michael; Long, Gavin; Pinto, Isabel R.; Albery, Ian P. (2016). A test of the Social Identity Model of Cessation Maintenance: The content and role of social control, Addictive Behaviors Reports, 3, 77-85. doi http://dx.doi.org/10.1016/j.abrep.2016.02.003. Link permanente: http://hdl.handle.net/10451/26482

Hubé, N., Salgado, S. & Puustinen, L. (2016). The Euro Crisis’ Actors and their Roles: Politicization and Personalization of the Press Coverage [Les acteurs de la crise de l’euro et leurs rôles : politisation et personnalisation de la couverture médiatique]. Politique Européenne, 52, 84-113. Link permanente: http://hdl.handle.net/10451/25088

Lavado, S., Pereira, C. R. Dovidio, J. F. & Vala, J. (2016). Evaluations of witnesses’ responses to bias: Universalism–Concern and the costs of confrontation. Personality and Individual Differences, 96, 172-180. doi: 10.1016/j.paid.2016.03.003. Link permanente: http://hdl.handle.net/10451/23094

Leite, Ana C,. Pinto, Isabel R., Marques, Jose M. (2016). Do Ambiguous Normative Ingroup Members Increase Tolerance for Deviants? Swiss Journal of Psychology, 75 (1), 47-52. DOI: 10.1024/1422-4917/a000170. Link permanente: http://hdl.handle.net/10451/26500

Levine, J. M., Marques, J. M. (2016). Norm violators as threats and opportunities: The many faces of deviance in groups [Introduction of Special issue: Deviance in Groups: Current Perspectives on Enduring Questions]. Group processes and intergroup relations, 19 (5), 545-552. DOI: 10.1177/1368430216657415. Link permanente: http://hdl.handle.net/10451/26489

Lobo, M. C. (2016). Bringing the Past Back in: How Attitudes towards the Democratic Transition Influence the Portuguese Voter. South European Society and Politics, 21(2), 181-196. doi: 10.1080/13608746.2016.1144249 Link permanente http://hdl.handle.net/10451/24077

Lobo, M. C., Pinto, A. C. & Magalhães , P. C. (2016). Portuguese Democratisation 40 Years on: Its Meaning and Enduring Legacies [Introduction]. South European Society and Politics. Vol. 21. 2, pp. 163-180. doi: 10.1080/13608746.2016.1153490 Link permanente: http://hdl.handle.net/10451/24076

Magalhães, P. C. (2016). Economic evaluations, procedural fairness, and satisfaction with democracy. Political Research Quarterly, 69(3), 522-534. Link permanente: http://hdl.handle.net/10451/24606

Magalhães, P. C. (2016). From ideology to performance: Austerity and government defection in the 2014 European Parliament elections. Electoral Studies, Vol. 44, p. 492–503. DOI: 10.1016/j.electstud.2016.04.015. Link permanente: http://hdl.handle.net/10451/25809

Pereira, J. S. , Raimundo, F. & Pinto, A. C. (2016). An Ever-Shadowed Past? Citizens’ Attitudes towards the Dictatorship in Twenty-First Century Portugal. South European Society and Politics, 21(2), 197-210. doi: 10.1080/13608746.2015.1128667. Link permanente: http://dx.doi.org/10.1080/13608746.2015.1128667

Pereira, J. S. (2016). The Media as a Window on the Past? The Impact of Television and Newspaper Consumption on Knowledge of the Democratic Transition in Portugal. South European Society and Politics, 21(2), 227-242. doi: 10.1080/13608746.2015.1131449. Link permanente: http://hdl.handle.net/10451/23444

Pereira, J. S. (2016). The Portuguese media system and the normative roles of the media: a comparative view. Análise Social, 221, LI (4.º), pp. 780-801. Link permanente: http://hdl.handle.net/10451/25389

Pereira, J. S. (2016). The Portuguese National Election of 2015: From Austerity to the fall of the Portuguese «Berlin Wall». Pôle Sud, 44, p. 143-152. Link permanente:

Pinto, I. R., Marques, J. M. & Paez, D. (2016). National identification as a function of perceived social control: A subjective group dynamics analysis. Group Processes & Intergroup Relations, 19 (2), 236-256. doi: 10.1177/1368430215577225. Link permanente: http://hdl.handle.net/10451/23428

Pinto, I. R., Marques, J. M. Levine, J. M. & Abrams, D. (2016). Membership role and subjective group dynamics: Impact on evaluative intragroup differentiation and commitment to prescriptive norms. Group Processes & Intergroup Relations, 19 (5), 570-590. doi: 10.1177/1368430216638531. Link permanente: http://hdl.handle.net/10451/26266

Rego, R., Sprenger, W. , Kirov, V. , Thomson, G. & Di Nunzio, D. (2016). The use of new ICTs in trade union protests: five European cases. Transfer: European Review of Labour and Research, 22(3), 315-329. doi: 10.1177/1024258916655761. Link permanente: http://hdl.handle.net/10451/24325

Salgado, S. & Nienstedt, H.-W. (2016). Euro Crisis and plurality: Does the political orientation of newspapers determine the selection and spin of information? European Journal of Communication, V. 31, Nº 4, 462-478 doi:10.1177/0267323116659977. Link permanente: http://hdl.handle.net/10451/24603

Sanches, E. (2016). O desenvolvimento dos sistemas partidários de Cabo Verde e São Tomé e Príncipe em perspetiva comparada (1991-2014). In Anuário de Direito de São Tomé e Príncipe (2015), pp. 121 – 146. Link permanente: http://hdl.handle.net/10451/25347

Sanches, E. R. & Espírito-Santo, A. (2016). Cabeças de lista às eleições legislativas portuguesas: laços locais ou visibilidade nacional? Análise Social, Vol. LI (3.º) (n.º 220), pp. 658-683. Link permanente: http://hdl.handle.net/10451/24806

Sanches, E. R. & Gorbunova, E. (2016). Portuguese Citizens’ Support for Democracy: 40 Years after the Carnation Revolution. South European Society and Politics, 21(2), 211-226. doi: 10.1080/13608746.2015.1130680. Link permanente: http://hdl.handle.net/10451/23396

Santana Pereira, J. (2016). A esquerda radical no período pós 2009: nada de (muito) novo em Portugal? [The radical left in the post-2009 period: nothing (very) new in Portugal? Oficina do Historiador, 9(1), 58-77. doi: http://dx.doi.org/10.15448/2178-3748.2016.1.22961. Link permanente: http://hdl.handle.net/10451/24314

Teymoori A, Jetten J, Bastian B, Ariyanto A, Autin F, Ayub N, et al. (2016) Revisiting the Measurement of Anomie. PLoS ONE 11(7). doi:10.1371/journal.pone.0158370. Link permanente: http://hdl.handle.net/10451/24443



Pereira, J. S. (2016). Política e entretenimento. Lisboa: Fundação Francisco Manuel dos Santos. ISBN: 978-989-8819-30-7

Gunther, R., Beck, P. A., Magalhães, P. C. & Moreno, A. (2016). Voting in old and new democracies. New York & London: Routledge ISBN: 978-1-138-91332-5

Vala, J., Waldzus, S., Calheiros, M. M. (Eds) (2016). The social developmental construction of violence and intergroup conflict. Springer. ISBN 978-3-319-42727-0. DOI 10.1007/978-3-319-42727-0. Link permanente: http://hdl.handle.net/10451/24758


Book chapters:

Ceka, B., & Magalhães, P.C. (2016). How People Understand Democracy: A Social Dominance Approach. In M. Ferrín, & H. Kriesi (Eds.), How Europeans View and Evaluate Democracy (pp. 90-110) Oxford: Oxford University Press. ISBN: 978-0-19-876690-2. DOI:10.1093/acprof:oso/9780198766902.003.0005.

Freire, A. & Pereira, J. S. (2016). More second-order than ever? : The 2014 european election in Portugal. In H. Schmitt & E. Teperoglou (Eds), The 2014 european parliament elections in Southern Europe : still second-order or critical contests?, pp. 95-116. London: Routledge. (Reprinted from South European Society and Politics, volume 20, issue 3, September 2015). ISBN 978-1-138-65689-5. Link permanente: http://hdl.handle.net/10451/24670

Freire, A., Espírito Santo, A., & Silva, S.S. (2016).A representação descritiva de género no Parlamento faz diferença nas preferências políticas? O papel dos partidos políticos». In A. Freire, M. Lisi & J. M. L. Viegas (eds.), Representação e Participação Política na Europa em Crise (pp. 221-234). Lisboa: Assembleia da República. ISBN 978-972-556-632-9.

Gunther, R., Lobo, M. C., Bellucci, P. & Lisi, M. (2016). The changing determinants of the vote. In R. Gunther, P. A. Beck, P. C. Magalhães & A. Moreno (Eds.), Voting in old and new democracies, pp. 150-192. New York & London: Routledge ISBN: 978-1-138-91332-5. Link permanente: http://hdl.handle.net/10451/22270

Kretchmer, S. B., Correa, T., Rennie, E., Thomas, J., Robinson, L., Salgado, S.,… Yates S. J. (2016). The Digital Divide: Worldwide Challenges for Communication Across the Life Span in the Digital Age. In Nussbaum, J. F. (ed.) Communication Across the Life Span, pp. 123-148.  (ICA International Communication Association. Annual Conference Theme Book Series, Vol. 3) New York: Peter Lang. ISBN: 978-1-4331-3181-3. Link permanente: http://hdl.handle.net/10451/26269

Leyens, J-P. & Vala, J. (2016). “Back to the Future:” Ideological Dimensions of Intergroup Relations. In J. Vala, S. Waldzus & M. M. Calheiros (Eds.), The Social Developmental Construction of Violence and Intergroup Conflict, pp. 85-104. Springer. ISBN 978-3-319-42727-0. Link permanente: http://hdl.handle.net/10451/24759

Lisi, M., & Santana-Pereira, J. (2016). Campaign individualisation before and after the Bailout: A comparison between Greece and Portugal. In A. Freire, M. Lisi, I. Andreadis & J. M. L. Viegas (eds.), Political Representation in Times of Bailout: Evidence from Greece and Portugal. (pp. 129-147). London: Routledge. (Reprinted from Special Issue: “Political Representation in Times of Bailout: Evidence from Greece and Portugal”. Guest Editors: André Freire, Marco Lisi, Ioannis Andreadis and José Manuel Leite Viegas, 2014, South European Society and Politics, 19(4)). ISBN: 9781138939028. Link permanente: http://hdl.handle.net/10451/23517

Magalhães, P. C., Beck, P. A. Gunther, R. & Moreno, A. (2016). Introduction. In R. Gunther, P. A. Beck, P. C. Magalhães & A. Moreno (Eds.), Voting in old and new democracies, pp. 1-18. New York & London: Routledge ISBN: 978-1-138-91332-5

Magalhães, P. C., Segatti, P. & Shi, T. (2016). Mobilization, informal networks and the social contexts turnout. In R. Gunther, P. A. Beck, P. C. Magalhães & A. Moreno (Eds.), Voting in old and new democracies, pp. 64-98. New York & London: Routledge ISBN: 978-1-138-91332-5. Link permanente: http://hdl.handle.net/10451/22269

Miguel, L. F., Biroli, F. & Salgado, S. (2016). Meios de comunicação e política: evolução histórica e comparações entre Brasil e Portugal. In H. Prior, L. Guazina, B. Araújo (orgs.) Diálogos Lusófonos em Comunicação e Política (pp. 43-72). Covilhã: LabCom.IFP. ISBN 978-989-654-317-4 (pdf). Link permanente http://hdl.handle.net/10451/25086

Ramos, A., Brites, R. & Vala, J. (2016). Confiança nas instituições políticas em países europeus: o papel dos valores, da experiência democráticã e da perceção de eficácia do sistema político numa perspetiva multinível. F. L. Machado, A. N. de Almeida & A. F. da Costa (Eds.), Sociologia e sociedade: estudos de homenagem a João Ferreira de Almeida. (pp. 345-367). Lisboa: Mundos Sociais. ISBN: 978-989-8536-54-9. Link permanente: http://hdl.handle.net/10451/24298

Ramos, A., Pereira, C. R., Vala, J. (2016). Economic crisis, human values and attitudes towards immigrants. M. Voicu, I. C. Mochmann & Hermann Dülmer (Eds.), Values, Economic Crisis and Democracy. (pp. 104-137) (Routledge Advances in Sociology). London & New York: Routledge. Taylor and Francis. ISBN: 978-1-138-95917-0. Link permanente: http://hdl.handle.net/10451/23394

Salgado, S. (2016). Political participation, alternative media and citizen journalism in lusophone Africa. In B. Mutsvairo (Ed.), Participatory politics and citizen journalism in a networked Africa: a connected continent (pp. 187-201). London: Palgrave Macmillan. ISBN 978-1-137-55449-9. Link permanente: http://hdl.handle.net/10451/25033

Sanches, E. R. (2015). O regresso da Aliança Democrática:a nova coligação PSD/CDS -PP (2002). Marco Lisi (Eds.), As eleições legislativas no Portugal democrático (1975-2015). (pp. 211-226). Lisboa: Assembleia da República. ISBN: ISBN: 978-972-556-627-5

Sanches, E. R. (2016). Zambia. In J. Abbink, S. Elischer, R. Hofmeier, A. Mehler & H. Melber (Eds.), Africa yearbook. Politics, Economy and Society South of the Sahara in 2015, Vol. 12. Leiden and Boston: Brill. ISBN: 978-90-04-31478-8. doi 10.1163/9789004333239. Link permanente: http://hdl.handle.net/10451/24930

Santana Pereira, J., & Lisi, M. (2016). Campanhas de partidos ou de candidatos? Individualização das campanhas eleitorais em diferentes cenários políticos e institucionais. In A. Freire, M. Lisi & J. M. L. Viegas (eds.), Representação e Participação Política na Europa em Crise (pp. 221-234). Lisboa: Assembleia da República. ISBN 978-972-556-632-9 . Link permanente: http://hdl.handle.net/10451/25217

Santana Pereira, J., & Lisi, M. (2016). Individualização das campanhas eleitorais antes e depois do resgate: uma comparação entre Grécia e Portugal. In A. Freire, M. Lisi & J. M. L. Viegas (eds.), Representação e Participação Política na Europa em Crise. (Coleção Parlamento), (pp. 55-74) Lisboa: Assembleia da República. ISBN 978-972-556-632-9. Link permanente: http://hdl.handle.net/10451/25218

Santana Pereira, J., & Nina, S. R. (2016). A democracia nos media portugueses: Pluralismo político-partidário na imprensa e na televisão. In E. Bello & S. S. M. Ribeiro (eds.), Democracia e Meios de Comunicação: Pluralismo, Liberdade de Expressão e Informação (pp. 225-247). Rio de Janeiro: Lumen Juris. ISBN 978-85-8440-608-1. Link permanente: http://hdl.handle.net/10451/25233

Vala, J. & Costa-Lopes, R. (2016). Categorização social e fatores ideológicos na dinâmica das relações intergrupais. M. E. O. Lima (Eds.), Níveis de análise e formas de intervenção em psicologia social. (pp. 43-73). São Paulo: Scortecci. ISBN: 978-85-366-4614-5. Link permanente: http://hdl.handle.net/10451/24304

Vala, J., Waldzus, S., Calheiros, M. M. (2016). Introduction and overview. In J. Vala, S. Waldzus & M. M. Calheiros (Eds), The social developmental construction of violence and intergroup conflict, xi-xviii. Springer. ISBN 978-3-319-42727-0. DOI 10.1007/978-3-319-42727-0. Link permanente: http://hdl.handle.net/10451/24758


Journal special issues:

Levine, JM; Marques, JM (Guest editors) (2016). Special issue: Deviance in Groups: Current Perspectives on Enduring Questions. Group processes and intergroup relations, 19 (5). Link permanente: http://hdl.handle.net/10451/26489

Lobo, M. C. & Pinto, A. C. (Eds.). (2016). The Presence of the Past: Perceptions of Authoritarianism and Democratic Transition in Contemporary Portugal. South European Society and Politics. Vol. 21. (2). Link permanente: http://hdl.handle.net/10451/24071


Marina Costa Lobo and José Pereira, “Preferential Voting Rules, District Magnitude and the Expression of Preferences on the Ballot: A Field Experiment” (2nd March, 2017)

Marina presented. Here’s the abstract:

“This article analyses the predictors of preferential in flexible list systems. It does so by using the results of an experimental survey carried out in Portugal, an exit poll which was took place on the legislative election day in 2015. Following the extant literature, and the gaps in the knowledge, the following hypotheses are tested, namely: the importance of political sophistication, voting rules and district size for expressing preference votes. Of the four indicators chosen to measure political sophistication, namely education, political interest, gender and age, only political interest is a significant predictor of preferential voting. A ballot which presents no alternative to expressing a preferential vote systematically makes a significant difference, compared to an optional preferential ballot. District size makes a difference only when the voting rules are considered: when compulsory voting is considered, it increases to a significant degree in average-sized districts. Finally, political interest tends to lose its significance when the voting rules are compulsory. The article therefore shows that preferential voting does not constitute an obstacle for those with less political sophistication to express a vote, especially when the voting rules make preferential voting compulsory.”


Luís de Sousa, “Survey methods applied to the study of corruption: challenges and advice” (16th February, 2017)

Luís prepared a discussion on the uses of survey research to study corruption. What are the recurrent problems/challenges resulting from the use of survey methods to measure/assess normative issues such as corruption, and what can we do, as social scientists, to mitigate them through the various methodological options available?