Why has Britain fewer marginal seats than it used to?

Paper number: 11/05

Year: 2011

Paper Category: Discussion Paper

Authors

Robert Hodgson and John Maloney

Abstract

The decline in the number of marginal constituencies in Britain is often attributed to the increasing geographical polarisation of the electorate, with the North having become even more pro-Labour and the South even more pro-Conservative. We show that this has been more than neutralised by the weakening links between social class and voting behaviour, and explain the fall in the number of marginals by the party, not just personal, incumbency effects which tend to pile up in all but the most marginal seats.

Why has Britain fewer marginal seats than it used to? Why has Britain fewer marginal seats than it used to?