Per citare l’articolo:
De Sio, L. (2008). Are Less-Involved Voters the Key to Win Elections? Comparative Political Studies, 41(2), 217–241.
Abstract
The literature highlights how different individual levels of political interest and knowledge matter for political attitudes and behavior. A logical-quantitative voting model is thus proposed for a two-party system, based on voters’ left–right ideological positions and their degree of political involvement. The model hypothesizes that although more involved voters generally behave in accordance with their ideological orientation, those who are less involved do not. Moreover, the latter tend to be more undecided and therefore likely to be more strongly influenced by campaign activities. This model is then applied to survey data regarding the 2001 Italian general elections. Results confirm the hypotheses and show that the most competitive area is ideologically a narrow centrist area for very involved citizens, becoming wider as the level of involvement decreases. Separate analyses are carried out for different geopolitical areas of the country, with results fitting the political history of these areas.
Lorenzo De Sio
Lorenzo De Sio è Professore Ordinario di Scienza Politica alla Luiss, dove dirige il [CISE – Centro Italiano Studi Elettorali](https://cise.luiss.it) e co-dirige il Luiss Research Center on Democracy. È co-direttore (con Mark Thatcher) della Laurea Magistrale bilingue in “Government & Public Affairs” (GPA) e co-direttore (con Sylvia Kritzinger) della [Italian Political Science Review/Rivista Italiana di Scienza Politica](https://www.rivisteweb.it/issn/0048-8402) (WOS Q2). Ha trascorso periodi di ricerca presso la University of California Irvine, l’European University Institute (Jean Monnet Fellow), la Stanford University (Campbell National Fellow) e SciencesPo Paris. La sua ricerca si concentra su analisi quantitative dell’opinione pubblica, comportamento di voto e competizione partitica. Tra i progetti di cui è stato Principal Investigator: l’Issue Competition Comparative Project (ICCP) e POSTGEN. Si occupa inoltre di infrastrutture di ricerca: ha diretto lo sviluppo del software [DAX](https://dax.luiss.it) nell’ambito di [FOSSR](https://fossr.eu) (PNRR) ed è Direttore del Service Center for Platform Design and Development nell’infrastruttura internazionale [MEDem](https://medem-research.eu). I suoi lavori sono pubblicati su riviste come *American Political Science Review*, *Comparative Political Studies*, *Electoral Studies*, *Party Politics*, *Political Psychology* e *West European Politics*. Il suo ultimo volume è **Democrazia addio** (Laterza, 2026).
