等分需求区间定价与折扣率定价的比较

在线性需求函数条件下，对将需求量区间等分的最优定价方法和按固定折扣率定价的方法在区间分段和垄断厂商多获取消费者剩余方面作了比较分析。研究结果表明，按固定折扣率定价时需求区间将按先宽后窄的顺序分段(第一区间除外)；而两种定价方法使垄断厂商获取的消费者剩余基本相同。
关 键 词 线性需求; 等分需求区间定价; 固定折扣率定价; 二度价格歧视

Abstract We have analyzed comparatively the optimum pricing of dividing up demand interval equally and pricing of fixed discount ratio on the aspects of division of interval and the consumer’s surplus which be gained by a monopoly enterprise. The conclusions are as the following: the demand interval will be divided up by this means that a front interval is longer than a hind interval (the first interval is exceptional) if we price under fixed discount ratio; the two pricing method will both make a monopoly enterprise gain equal consumer’s surplus on the whole.
Key words linear demand; pricing of dividing up demand interval equally; pricing of fixed discount ratio; second-degree price discrimination