Equality implies proportionality: Assessing the (dis)proportionality of constituencies created for the 2022 Slovak regional elections

Abstract In a democratic environment, political equality implies proportionality. Achieving this in an electoral setting can be complicated and unrealistic. The aim of this article is to investigate the logic, approach and method of creating constituencies in the elections for Slovak self-governing regions in 2022. We track the key attributes related to proportionality: the legislation, the actual creation of constituencies, the mechanisms used for the redistribution of mandates and the achievement of proportionality in individual constituencies within particular regions. Our results indicate considerable disproportionality within the constituencies of particular self-governing regions, which is mainly caused by the lack of effective legislation, the different approaches of authorities in creating constituencies and the absence of limits to the violation of electoral and thus political equality.