Fundamentals of Cost Accounting 2nd Edition by William Lanen, Carolyn Wells, Michael Maher

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Airlines are well known for using complex pricing structures. For example, it is often (but not always) less expensive to buy a ticket in advance than it is on the day of the flight. However, if the airline offered this lower ("discount") fare for all seats, it could not remain in business. Why offer fares with different prices What, if any, costs are different