Who votes for Anti-Corruption Parties? The Emergence of a New Party Family

Corruption and issues related to quality of government are becoming increasingly salient to both voters and parties all around the globe. One indication of that is the steady increase in the number of electoral campaigns in which corruption is politicized by parties and candidates (Bågenholm & Charron, 2014; Curini, 2018). Whereas a lot of attention recently has been paid to the phenomenon of corruption voting, i.e. the extent to which the electorate is holding corrupt politicians and parties accountable by ‘voting such rascals out’, considerably less research has been done on the supply side of this equation, namely the parties that campaign on fighting corruption. Surprisingly enough, even recent research on party categorization has ignored the issue of corruption. This paper aims at filling this gap by asking if - from a voter perspective – valence parties that specifically focus on anti-corruption can be considered a distinct type of party. To answer this question we analyze data from the latest rounds of the QoG Regional Survey from 2017, 2021 and 2024, which covers all EU-27 countries, comparing Anti-Corruption Party (ACP) supporters with supporters of other party families. Preliminary results suggest that ACP voters in some respects are distinct both demographically and attitudinally from the voters of other party families, which suggest that it is reasonable to argue that anti-corruption parties are a distinct type of party, or at least not less distinct than parties.