To ask the Scottish Government, further to the answer to question S4F-01500 by Alex Salmond on 27 June 2013 (Official Report, col. 21759), whether it will set out (a) the evidence that supports the First Minister's comment that “reduction or elimination of air passenger duty would result in additional not less revenue”, (b) the levels of air passenger duty to which the statement applies and (c) any assumptions made on which other tax receipts...