Choosing between Impossible Alternatives: Creating a New Constituency Map for Wales, 2004

The allocation of at least 35 parliamentary constituencies to Wales in the 1944 House of Commons (Redistribution of Seats) Act meant that Wales was over-represented in the House of Commons. Subsequent decisions by the Boundary Commission for Wales, operating within a set of mutually contradictory rules, increased the number of Welsh seats to 40 and exacerbated the country's over-representation in the House, relative to the situation for England.
In its Fifth Periodic Review, the Boundary Commission has determined not to recommend any further growth in the number of Welsh constituencies, but its method of doing this has created substantial inequalities within the country, with the area around Cardiff significantly under-represented relative to the situation in North Wales. These inequalities will also apply to the Welsh Assembly. The political parties did not challenge these recommendations, presumably because they felt that their interests were best served by the inequalities. Analysis shows that alternative sets of recommendations would have been somewhat more egalitarian, but within an overall structure of unfairness guaranteed by the unworkable rules under which the Commissions must operate.