The Entry of the M5S and the Reshaping of Party Politics in Italy (2008–2018)

Daniela Giannetti*, Karen Umansky, Itai Sened

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

This article examines how challenger parties enter the political arena and the effect of this entry by looking at the Italian 5 Star Movement (Movimento 5 Stelle – M5S). We explain the M5S’s entry strategy in 2013 using the spatial approach to party competition and employing expert survey data collected for each national election between 2008 and 2018. These data allow us to analyse the changing spatial configuration of Italian politics due to the increasing salience of pro/anti-EU and pro/anti-immigration dimensions. We then apply the theoretical notion of the uncovered set (UCS) to trace how the M5S’s entry reshaped the overall space of party competition, causing a realignment of existing parties. This work contributes to the ongoing debate on the electoral success of challenger parties and the emerging cleavages and polarization of party systems in Western European countries.

Original languageEnglish
Pages (from-to)464-481
Number of pages18
JournalGovernment and Opposition
Volume59
Issue number2
DOIs
StatePublished - 22 Apr 2024

Keywords

  • 5 Star Movement
  • Italy
  • issue salience
  • populist parties
  • uncovered set

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