“…The spill-over effect of cost of ruling: Consequences for legislative behaviour Legislators' votes in parliament are shaped by multiple considerations. They vote according to their personal convictions, often rooted in their demographic background, personality traits or ideological dispositions (Baumann et al, 2015;Bøggild et al, 2021), and they vote according to the party line to maintain or advance their position within the party (Cox & McCubbins, 1993;Faas, 2003;Slapin et al, 2018;Strøm, 2012). Political parties hold control mechanisms, including campaign finances, candidate selection and the power to assign committee and cabinet positions, to enforce discipline among its members (Bøggild & Pedersen, 2018;Cox & McCubbins, 1993;Kam, 2009;Martin, 2014b).…”