Footnotes

1. Cranfield University et al: Study on Competition between Airports and the Application of State Aid Rules - Volume 1; for European Commission - Directorate General of Energy and Transport (Sept 2002)

2. WLU is a Work Load Unit - each unit represents one passenger or 100kg of freight.

3. MIDT stands for Market Information Data Tapes (or Transfer), which is a source of sales information on airline flight transactions booked through GDS systems and unlike CAA data allows analysis of fares and yields.

4. See The Chief Secretary to the Treasury's Statement to the House of Commons on 27 June 2013.

5. Cranfield University et al: Study on Competition between Airports and the Application of State Aid Rules - Volume 1; for European Commission - Directorate General of Energy and Transport (Sept 2002)

6. WLU is a Work Load Unit - each unit represents one passenger or 100kg of freight.