Unionist unity? Strategic voting at Scottish parliamentary elections

Abstract

This paper examines strategic voting at Scottish Parliamentary elections since 1999. The emergence of the pro-independence Scottish National Party as the dominant party in Scotland has forced unionist voters to carefully consider their options. Analysing differences between the simultaneous pluralist constituency ballot and proportional list ballot of Scotland’s Additional Member System provides a unique insight into how voter behaviour has changed in response to Scotland’s changing political reality. This paper finds that many unionist voters have put aside left-right rivalries to support fellow unionist candidates on the constituency ballot. This examination finds that Labour and Conservative voters are willing to work together, in some circumstances, to defeat a significant number of pro-independence candidates. I find that intra-unionist strategic voting helped prevent the separatist majorities in parliament in both 2016 and 2021.