The review of Parliamentary constituencies that ended prematurely in 2013 would have resulted in most of the 600 seats contested at the 2015 general election being very different from the current 650. In this second blog based on their research Ron Johnston, David Rossiter and Charles Pattie outline why electoral quotas, rather than a reduction in the number of MPs, would be the primary cause of disruption in a boundary review.
The redistributions undertaken by the Boundary Commissions in 2011-2013 were aborted by Parliament for political reasons before their completion, so the 2015 general election will be fought in the current constituencies. But implementation of the 2011 Act was merely delayed until 2016 and a new set of reviews initiated then will, if conducted under the same Rules for Redistributions, be as disruptive to the current map of constituencies as those aborted in 2013. However, this will be primarily due to attempts to introduce electoral quotas, rather than any reduction in the number of MPs.
In seeking to reduce the number of MPs, from 650 to 600, the coalition government was less concerned with the impact on boundaries than in reducing the cost of Parliament. But as MPs and others saw seats disappear from the map amid the general disruption, the two issues became somewhat conflated. Surely this reduction had to be part of the cause? Our research suggests the impact was slight, however. A few more seats might have escaped change had the number of MPs not been altered, but the causes (and possible solutions) of the major disruption were elsewhere.
The imposition of a single electoral quota plus the reduction in the number of MPs meant that the formerly over-represented parts of the United Kingdom would experience larger decreases in their Parliamentary delegations than others: the number of Welsh MPs would decline from 40 to 30 (a 25 per cent reduction) and Scottish MPs from 59 to 52 (a 12 per cent loss); Northern Ireland’s decline was from 18 to 16 (11 per cent) and England’s from 533 to 502 (6 per cent).