Dimensionality, ideology and party positions towards European integration

The rise of political contestation over European integration has led many scholars to examine the role that broader ideological positions play in structuring party attitudes towards European integration. This article extends the existing approaches in two important ways. First, it shows that whether the dimensionality of politics is imagined in a one-dimensional ‘general left‒right’ form or a two-dimensional ‘economic left‒right/social liberal-conservative’ form leads to very different understandings of the way ideology has structured attitudes towards European integration, with the two-dimensional approach offering greater explanatory power. Second, existing approaches have modelled the influence of ideology on attitudes towards European integration as a static process. This article shows that the relationship between ideology and European integration has changed substantially over the history of European integration: divisions over social issues have replaced economic concerns as the main driver of party attitudes towards European integration.