Equalising constituency sizes is likely to reduce the electoral bias in favour of Labour but only minimally so: much of the bias is likely to remain because it is due to other factors such as turnout and vote distribution.

Abstract

One reason why the government wants to equalise electoral constituency sizes is to correct for a perceived electoral bias in favour of Labour and against the Conservatives. Claus Beisbart and Luc Bovens investigate to what extent unequal constituency sizes were responsible for the electoral bias in the 2010 election