Guardian’s Allowance Up-rating Order 2013

My Lords, can the Minister elaborate on that point? In the Treasury’s initial assessments, and despite what seemed to be the obvious impact of the cut in top-take tax from 50% to 45%, its estimates were far lower than £1 billion. It has therefore significantly increased its estimate of the take; I refer to the estimates published at the time of the announcement of that measure. Will the Treasury publish a full assessment of the impact of the change in tax rates? Will it do so on a rolling basis, because we will know much more in four years about what has really happened during the past year than we know now?