‘Fear and loathing across party lines’ (also) in Europe: Affective polarisation in European party systems

Abstract Several scholars in the United States have recently addressed an increased partisan animosity between Democrats and Republicans, and have termed this phenomenon ‘affective polarisation’. This surge in partisan affective polarisation is perceived to be highly problematic, as it has been found to have a negative impact on the functioning of the party system and even society at large. The aim of this article is to study the concept of affective polarisation in European party systems. It introduces the Affective Polarisation Index (API) that allows for measuring and comparing levels of affective polarisation also in multiparty systems. This novel measure is applied to 22 European democracies and the…