"The costs went up faster than the revenues when the business passengers got off."
"Very few business passengers personalize their fear," he said.
"The business passenger pays through the nose, and we have to do whatever we can to even the score," he said.
The changes are aimed at winning business passengers to the airline.
Those airlines are expanding, using lower fares to lure business passengers.
National Express says carnet tickets are only available to business passengers.
That's not because it's become more expensive to carry business passengers, either.
However, to try to attract more business passengers, the airline retained the 8% commission on their international routes.
More difficult to handle are hardened business passengers unable to find space for their carry-ons.
And in 1985, a business passenger died when a helicopter with eight people aboard crashed.