Bandwagon effects in British elections, 1885–1910

This article investigates possible bandwagons in actual elections rather than the usual opinion poll data. Until 1918, British general elections were staggered over a fortnight or more. We use the eight general elections between 1885 and 1910 to investigate whether there was a general bandwagon or underdog effect as the election progressed. We find that any bandwagon effect was in favor of the party which eventually won the election, not the party gaining seats compared with last time. We also find that a typical election featured an initial bandwagon effect which peaked about halfway through the election and then declined. Its decline appears to be due both to declining enthusiasm for the leading party and to later polls occurring in places where voters were less prone to get on a bandwagon in the first place. The weakening of the bandwagon was correlated to distance of the constituency from London, although it revived to some extent in Scotland.