Background: The airline industry of today functions in a very intense and competitive market and is also very sensitive to change. Over the last years the airline industry has changed and been affected drastically. Factors like sudden shocks, such as the terrorist attacks of September 11th in 2001 and the SARS (Severe Acute Respiratory Syndrome) phenomenon in China 2003, change in macroeconomic factors, such as GDP growth in different regions, changes in the oil price and fluctuations in exchange rates, and also by the fact that the airline industry have experienced a general change in structure and trends. A consequence of these shocks and general industry changes, also made worse by the ongoing financial crisis and escalation of fuel pric...