A spatial analysis of parliamentary elections in Sweden 1985–2018

Understanding where and why political change is happening in a country is a fundamental issue in political geography. While electoral choice is individual, it is influenced by various sociological, cultural, and geographical factors postulated to create ‘cultural fields’ influencing individual decision-making. Here, we test the cultural field hypothesis on Sweden, an important democracy of Europe long regarded as an example by other European countries, by studying the middle-long-term evolution of the spatial structure of political choice over the last three decades. In testing the cultural field hypothesis, an analysis of spatial correlations is combined with groupings of Swedish municipalities into larger communities reflecting the similarity of their voting profiles. We show that spatial correlations decay logarithmically, which is a sign of long-ranged interactions, and also demonstrate that Sweden can be divided into three or four large and stable politico-cultural communities. More precisely, a transition from three to four main politico-cultural communities is observed. The fourth community, which emerged in the early 2000s is of particular interest as it is characterized by a large vote-share for the Sweden Democrats, while almost all other parties underperform. Moreover, the Swedish electoral landscape seems to be increasingly fragmenting even when the voting profiles of the municipalities over the country are slowly converging.