Party Polarisation and Spatial Voting in Spain
The spatial depiction of political systems, where parties and voters can simultaneously be located along a continuum ranging from left to right, has been facilitated by the remarkable ability of this dimension to reflect various context-specific issues or value concerns. Apart from the huge difference between the two surveys in the number of responses in both Catalonia and the Basque Country, one of the reasons for no. using the European Election Study (EES) surveys for these two regions is that it does not explicitly identify respondents from Catalonia and the Basque Country. Nationalism generates a tendency towards the left in Catalonia and the Basque Country, to the extent that there is a relationship between the two in other regions it is more likely to work the other way round: from ideology to attitudes towards decentralisation. The political system in Catalonia and the Basque Country can be effectively summarised through a single horizontal dimension.