答案:【计分规则】: 1)Allows the airline to increase total flight revenues with little impact on total operating costs:a) Incremental revenue generated by discount fare passengers who otherwise would not flyb) Incremental revenue from high fare passengers willing to pay morec) Studies have shown that most “traditional” high-cost airlines could not cover total operating costs by offering a single fare level2) Consumers can also benefit from customized pricing:a) Most notably, discount passengers who otherwise would not flyb) Also conceivable that high fare passengers pay less and/or enjoy more frequency given the presence of low fare passengers