I need not repeat my earlier remarks about the reviews we already carry out, and I reiterate the point that the new clause, as worded, would implement a review of the possible impact of the taxation we are considering before such taxation had come into effect, which as an exercise is possibly not that valuable. Of course, we always keep all taxes under review. The hon. Lady talked about seeking beneficial behavioural change through mechanisms other than APD, for example. I am happy to receive any representations that she might make in that vein.

The hon. Lady mentioned her colleague, the hon. Member for Luton North, and the impact of APD on passengers who require a long-haul flight to visit relatives. I will certainly get back to her on that when I return to the Treasury. She also mentioned competition between different airports following the devolution of APD. Scotland will in due course bring in its own form of ADT. She also referred to the Northern Ireland situation. It will be for each of those tax jurisdictions to start to take whatever measures they think are appropriate to ensure that their particular airports and passengers are not disadvantaged. I suspect that, as with competing tax rates, the dynamics will probably be for those tax rates to come down, as a result of the competitive effect or the fact that there is a devolved Government. I commend the clause to the Committee.