Electoral Influences on Legislative Behavior in Mixed‐Member Systems: Evidence from Ukraine's Verkhovna Rada

Abstract: This article addresses how mixed‐member systems that combine proportional representation (PR) and single‐member districts (SMD) into a single election can influence legislators' voting behavior. Scholars have generally extended standard expectations of behavior to mixed‐member systems by assuming that legislators occupying PR seats in mixed‐member parliaments should be more cohesive than those occupying SMD seats. I argue that controlling for seat type alone does not take into account the interaction between PR and SMD in mixed‐member systems. Using voting data from Ukraine's Verkhovna Rada, I show that controlling for dual candidacy and the “safety” of the deputy's district or list position increases our understanding of the factors motivating legislative cohesion.