The European Issue and Party Choice at British General Elections, 1974-2005

Political scientists have long debated whether "issues" influence vote choices. It is now generally agreed, however, that policy preferences and evaluations of party performance have some limited impact on vote decisions. It has also been shown that the influence of issues varies both between individuals and between elections. This article adds to our understanding of these issues by examining how the European issue influenced individual vote decisions at each general election since 1974. We use Manifesto Research Group (MRG) data to show that the effect of Europe on individual vote decisions increases as the parties became more polarized and decreases as they converge on the European issue.