Mind the gap(s): Winning,losing, and perceptions of electoral integrity in mixed-member proportional systems

This study investigates whether and how experiences of winning and losing at the ballot box shape voters' views about the integrity of the electoral process in Germany's mixed-member proportional system. Relying on comprehensive data from the German Longitudinal Election Study (GLES) 2021, the analysis provides evidence for a consistent winner-loser gap in voters' electoral-integrity perceptions, with electoral losers evaluating the electoral process systematically more negative than electoral winners. Moreover, the analysis shows that the winner-loser gap is particularly pronounced for voters who lost in two consecutive federal elections (‘repeated losers’) as well as for those who suffered electoral defeat with both their list and district votes (‘double losers’). These findings provide novel insights on how voters in mixed-member proportional systems cope with winning and losing at the ballot box, highlighting that electoral losers place (part of) the blame for their electoral defeat on the electoral process and procedures as such. In addition, the findings point to the relevance of specific features of electoral systems in shaping winner-loser gaps in electoral-integrity beliefs.