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Aree di ricerca:

Public opinion, Political Behaviour, Elections and Political Parties


Lorenzo De Sio is Professor of Political Science at the LUISS Guido Carli University, Rome, where he teaches several courses at all levels. He is the director of the CISE research centre (Centro Italiano Studi Elettorali), and of the Master’s Programme in Governo, Amministrazione e Politica (GAP).

Formerly Visiting Research Fellow at UC Irvine, Jean Monnet Fellow at the Robert Schuman Centre of the European University Institute, Campbell National Fellow at Stanford University, he participated to several international research projects, among which “The True European Voter”(ESF-COST Action IS0806), the “EU Profiler” (2009) and euandi (2014) – both latter promoted by the EUDO Observatory on Public Opinion, Political Elites and the Media at the EUI’s Schuman Centre. A member of the ITANES (Italian National Election Studies), he recently conducted the Issue Competition Comparative Project (ICCP) international project.

His current research interests are mostly focused on quantitative analyses of voting behaviour and party competition in comparative perspective, with a specific focus on the role of issues in party strategy. He welcomes supervising MA and PhD students on these topics.

Among his publications, beyond several books and edited books in Italian and English, are articles appearing in the American Political Science Review, Comparative Political Studies, Electoral Studies, Party Politics, West European Politics, South European Society and Politics, and all major Italian political science journals.

  • Angelucci, Davide; De Sio, Lorenzo; Paparo, Aldo (2021). Beyond the migration crisis, deep values. Where does hostility to immigrants come from?. PARTECIPAZIONE E CONFLITTO, p. 373-395. ISSN 2035-6609. https://dx.doi.org/10.1285/i20356609v14i1p373.
  • Angelucci, Davide; De Sio, Lorenzo (2021). Issue characterization of electoral change (and how recent elections in Western Europe were won on economic issues). QUADERNI DELL'OSSERVATORIO ELETTORALE, p. 45-67. ISSN 0392-6753.
  • De Sio, Lorenzo; Lachat, Romain edited by (2021). Conflict Mobilisation or Problem-Solving? Issue Competition in Western Europe. Routledge, p. 1-241. ISBN: 9780367710828
  • De Sio, Lorenzo; Mannoni, Elisabetta; Paparo, Aldo (2020). Anatomy of a Black Swan? Explaining the 2018 Italian Election Result through a Novel Issue Voting Model of Voter Transitions. COMUNICAZIONE POLITICA, p. 205-230. ISSN 1594-6061. https://dx.doi.org/10.3270/97904.
  • Angelucci, Davide; De Sio, Lorenzo; Paparo, Aldo (2020). Europe matters … upon closer investigation: a novel approach for analysing individual-level determinants of vote choice across first- and second-order elections, applied to 2019 Italy. RIVISTA ITALIANA DI SCIENZA POLITICA, p. 334-349. ISSN 0048-8402. https://dx.doi.org/10.1017/ipo.2020.21.
  • Chiaramonte, Alessandro; De Sio, Lorenzo; Emanuele, Vincenzo (2020). Salvini’s success and the collapse of the Five-star Movement: The European elections of 2019. CONTEMPORARY ITALIAN POLITICS, p. 140-154. ISSN 2324-8823. https://dx.doi.org/10.1080/23248823.2020.1743475.
  • De Sio, Lorenzo; Weber, Till (2020). Issue yield, campaign communication, and electoral performance: a six-country comparative analysis. WEST EUROPEAN POLITICS, p. 720-745. ISSN 0140-2382. https://dx.doi.org/10.1080/01402382.2019.1655968.
  • Brader, Ted; De Sio, Lorenzo; Paparo, Aldo; Tucker, Joshua A. (2020). “Where You Lead, I Will Follow”: Partisan Cueing on High‐Salience Issues in a Turbulent Multiparty System. POLITICAL PSYCHOLOGY, p. 795-812. ISSN 0162-895X. https://dx.doi.org/10.1111/pops.12651.
  • D'Alimonte, Roberto; De Sio, Lorenzo; Franklin, Mark N. (2020). From issues to goals: a novel conceptualisation, measurement and research design for comprehensive analysis of electoral competition. WEST EUROPEAN POLITICS, p. 518-542. ISSN 0140-2382. https://dx.doi.org/10.1080/01402382.2019.1655958.
  • De Sio, Lorenzo; Lachat, Romain (2020). Making sense of party strategy innovation: challenge to ideology and conflict-mobilisation as dimensions of party competition. WEST EUROPEAN POLITICS, p. 688-719. ISSN 0140-2382. https://dx.doi.org/10.1080/01402382.2019.1655967.
  • Paparo, Aldo; De Sio, Lorenzo; Brady, David W. (2020). PTV gap: a new measure of party identification yielding monotonic partisan attitudes and supporting comparative analysis. ELECTORAL STUDIES, p. 1-31. ISSN 0261-3794. https://dx.doi.org/10.1016/j.electstud.2019.102092.
  • De Sio, Lorenzo; Lachat, Romain (2020). Issue competition in Western Europe: an introduction. WEST EUROPEAN POLITICS, p. 509-517. ISSN 0140-2382. https://dx.doi.org/10.1080/01402382.2019.1655957.
  • De Sio, Lorenzo; Franklin, Mark N.; Russo, Luana edited by (2019). The European Parliament Elections of 2019. LUISS University Press, p. 1-282. ISBN: 978-88-6105-411-0
  • Chiaramonte, Alessandro; De Sio, Lorenzo edited by (2019). Il voto del cambiamento. Le elezioni politiche del 2018. Il Mulino, p. 1-290. ISBN: 9788815352897, 9788815284310
  • Plescia, Carolina; Kritzinger, Sylvia; De Sio, Lorenzo (2019). Filling the void? Political responsiveness of populist parties. REPRESENTATION, p. 513-533. ISSN 0034-4893. https://dx.doi.org/10.1080/00344893.2019.1635197.
  • de sio, Lorenzo (2018). Strategia di partito e voto di classe: lo strano caso del Pd del 2018 "partito delle élite". QUADERNI DI RASSEGNA SINDACALE. LAVORI, p. 165-188. ISSN 1590-9689.
  • DE SIO, Lorenzo; De Angelis, Andrea; Emanuele, Vincenzo (2018). Issue Yield and Party Strategy in Multiparty Competition. COMPARATIVE POLITICAL STUDIES, p. 1208-1238. ISSN 0010-4140. https://dx.doi.org/10.1177/0010414017730082.
  • Plescia, Carolina; DE SIO, Lorenzo (2017). An evaluation of the performance and suitability of R × C methods for ecological inference with known true values. QUALITY & QUANTITY, p. 1-15. ISSN 0033-5177. https://dx.doi.org/10.1007/s11135-017-0481-z.
  • DE SIO, Lorenzo; Franklin, Mark N.; Weber, Till (2016). The risks and opportunities of Europe: How issue yield explains (non-)reactions to the financial crisis. ELECTORAL STUDIES, p. 483-491. ISSN 0261-3794. https://dx.doi.org/10.1016/j.electstud.2016.06.006.
  • Garzia, D.; Trechsel, A.; DE SIO, Lorenzo (2015). Party placement in supranational elections: An introduction to the euandi 2014 dataset. PARTY POLITICS, p. 1-9. ISSN 1354-0688. https://dx.doi.org/10.1177/1354068815593456.
  • Alessandro, Chiaramonte; DE SIO, Lorenzo edited by (2014). Terremoto elettorale. Le elezioni politiche del 2013. Il Mulino, p. 1-276. ISBN: 9788815251725
  • DE SIO, Lorenzo; Till, Weber (2014). Issue Yield: A Model of Party Strategy in Multidimensional Space. AMERICAN POLITICAL SCIENCE REVIEW, p. 870-885. ISSN 0003-0554. https://dx.doi.org/10.1017/S0003055414000379.
  • DE SIO, Lorenzo; Emanuele, Vincenzo; Nicola, Maggini edited by (2014). The European Parliament Elections of 2014. Centro Italiano Studi Elettorali, p. 1-334. ISBN: 9788898012152
  • DE SIO, Lorenzo; Emanuele, Vincenzo; Nicola, Maggini edited by (2014). Le Elezioni Europee 2014. Centro Italiano Studi Elettorali, p. 1-393. ISBN: 9788898012138
  • DE SIO, Lorenzo; Matteo, Cataldi; Federico De, Lucia edited by (2013). Le Elezioni Politiche 2013. Luiss Guido Carli, CISE (Centro Italiano Studi Elettorali), p. 1-203. ISBN: 9788898012084
  • DE SIO, Lorenzo; Emanuele, Vincenzo; Nicola, Maggini; Aldo, Paparo edited by (2013). The Italian General Election of 2013: a dangerous stalemate?. Centro Italiano Studi Elettorali, p. 1-120. ISBN: 9788898012107
  • DE SIO, Lorenzo; Emanuele, Vincenzo edited by (2013). Un anno di elezioni verso le Politiche 2013. Centro Italiano Studi Elettorali, p. 1-145. ISBN: 9788898012060
  • DE SIO, Lorenzo; Vezzoni, Cristiano (2013). How Far is the City? Geographical Remoteness and Voting Behaviour in Italy and France. RIVISTA ITALIANA DI SCIENZA POLITICA, p. 253-276. ISSN 0048-8402. https://dx.doi.org/10.1426/73968.
  • DE SIO, Lorenzo; Nicola, Maggini edited by (2012). Crisi e rimobilitazione: gli italiani, la politica, i partiti nelle indagini campionarie del CISE (2011-2012). CISE, p. 1-153. ISBN: 9788898012046
  • DE SIO, Lorenzo; Mark N., Franklin (2012). Strategic Incentives, Issue Proximity and Party Support in Europe. WEST EUROPEAN POLITICS, p. 1363-1385. ISSN 0140-2382. https://dx.doi.org/10.1080/01402382.2012.713750.
  • DE SIO, Lorenzo; Aldo, Paparo edited by (2012). Le Elezioni Comunali 2012. Centro Italiano Studi Elettorali, p. 1-182. ISBN: 9788898012015
  • De Sio, Lorenzo edited by (2011). La politica cambia, i valori restano?: Una ricerca sulla cultura politica dei cittadini toscani. Firenze University Press, p. 1-204. ISBN: 9788866550167https://dx.doi.org/10.36253/978-88-6655-020-4.
  • DE SIO, Lorenzo (2011). Competizione e spazio politico. Le elezioni si vincono davvero al centro?. Il Mulino, p. 1-288. ISBN: 9788815149374https://dx.doi.org/10.978.8815/302113.
  • DE SIO, Lorenzo; G., Legnante (2010). Economic crisis and European elections: an alteration of the electoral cycle?. QUADERNI DI SCIENZA POLITICA, p. 447-489. ISSN 1124-7959.
  • DE SIO, Lorenzo; M., Pisati (2010). Quanto sono «scientifiche» le scienze sociali? Una discussione intorno a «Making Social Sciences More Scientific» di Rein Taagepera. RIVISTA ITALIANA DI SCIENZA POLITICA, p. 449-472. ISSN 0048-8402. https://dx.doi.org/10.1426/33392.