Milton Friedman 【Price Theory】
引用“Consider the case of a monopolist. Without any knowledge of his cost curves, one can immediately conclude that he never would be operating in the inelastic protion of his demand curve. In such a portion, the reciepts would be less than at a higher price, while total costs would clearly be no less, since it can in general not cost more to produce a smaller quantity than a large (one could always produce the smaller quantity by producing the larger and disposing of the excess). However, if one were to choose which industry to monopolize, he would choose one for which the demand curve was highly inelastic at the competitive price. Once a successful monopoly had been established, price would be raised so as to operate in the elastic portion of the demand curve (the exact point in the elastic region will, of course, depend on cost conditions).”

为什么选择需求曲线高度缺乏弹性的行业？