From Votes to Seats in Multi-party Plurality Electoral Systems

There is a growing realisation among political scientists and other psephologists that geography can be a very important element in both the conduct and the outcomes of elections. Too often national territories are treated – implicitly if not explicitly – as homogeneous blocks, with insufficient realisation that spatial variations can substantially undermine generalisations that assume national uniformity. We illustrate that case here using the example of the 2015 British general election, which was fought on a very heterogeneous geographical foundation, which had a major impact on the outcome, and which resulted in even greater heterogeneity prior to the next general election that of 2020?