di Roberto D'Alimonte e Nicola Maggini pubblicato su Il Sole 24 Ore del 28 febbraio 2013     Uno dei dati più rilevanti che emerge dalle elezioni politiche del 2013 è stato senza dubbio l’arretramento elettorale delle due coalizioni di centrosinistra e di centrodestra rispetto alle precedenti elezioni del 2008. Le due principali coalizioni, infatti, hanno perso complessivamente quasi 11 milioni di voti. In particolare il centrodestra ha perso poco più di 7 milioni di voti, ossia il 42% dei suoi consensi del 2008, mentre il centrosinistra ha perso più di tre milioni e mezzo di voti, vale a dire il 27%...

D’Alimonte, R., Di Virgilio, A., & Maggini, N. (2013). I risultati elettorali: bipolarismo addio? In ITANES (Ed.), Voto amaro. Disincanto e crisi economica nelle elezioni del 2013 (pp. 17–32). Bologna: Il Mulino. Retrieved from https://www.muli...

The economic crisis, the fall of the Berlusconi’s cabinet in November 2011 and the formation of the technocratic cabinet led by Mario Monti provided the ground for the general elections held in February 2013, which reached a stalemate, contrary to what most observers expected. The center-left coalition won in the Chamber but not in the Senate. The result in the Senate made it impossible to form a majority coalition between Bersani’s left and Monti’s center, which many considered the most likely outcome of these elections. In the end, the only available option for the PD, the winner in the Chamber, was to form a cabinet with Berlusconi’s PdL. There are many factors explaining this destabilizing result. The first and most important is the success of a brand new anti-establishment party, the Five Star Movement, which attracted voters from across the political spectrum and became the largest party in the country. The second is the inability of the center-left not only to extend its electoral base at a time when the center-right lost almost half of the votes received in 2008, but also to keep its previous electorate. The third factor is the peculiar nature and functioning of the electoral system for the Senate.

The 2013 Italian general elections produced a largely unexpected and destabilizing outcome. The major surprise came from the Movimento 5 stelle (M5s, Five star movement), a brand new, anti-establishment political force which got more than 25% of the valid votes and turned out to be the largest party list in the domestic arena of the Chamber of deputies. The destabilizing nature of the outcome stemmed from the lack of a real winner which ended up in political stalemate. In fact, the center-left won in the Chamber of deputies, but not in the Senate and could not form a cabinet by itself. In the end, the Partito democratico (Pd, Democratic Party) was left with the only unpalatable option to have to form a ‘grand governing coalition’ with Berlusconi’s Popolo delle libertà (Pdl, People of freedom). Indeed, the widespread expectation was that the center-left would win with a large margin. For a long time before the vote most of the polls had indicated that Bersani’s lead was large enough to make his coalition gain the absolute majority of seats in both chambers either alone or together with the Monti’s coalition. It was not the case. Actually, what really happened in the ballot box on February 24th and 25th is still unclear to some extent. Here we will try to give a brief and preliminary explanation, analyzing the background to the election, the results and the role played by the electoral systems, the aggregate vote shifts between the 2013 and 2008 elections, the geographical distributions of the vote, and, finally, the transformation of the party system.