To ask the Chancellor of the Exchequer what modelling has been undertaken in assessing the likely impact on the economic viability of the aviation industry of the introduction of aviation duty. (232255)

I refer the hon. Gentlemen to the answer I gave to my hon. Friends, the Members for Manchester, Blackley (Graham Stringer) and for Derby, North (Mr. Laxton) and to the hon. Member for Manchester, Withington (Mr. Leech) on 27 October 2008, Official Report, column 789-90W.