Maintaining profitability in the airline industry

My students have been tackling this assignment this week as part of their microeconomics course.
(a) Many airlines have reported heavy losses and several have already gone into administration or filed for bankruptcy. Using cost and revenue diagrams, explain why airlines have been experiencing such losses (15)
(b) Discuss the ways in which airlines can control their losses and continue to operate profitably in an industry where costs and revenues are unpredictable (15 marks)
Answers to part (b) sort the wheat out from the chaff!

