存储论一般从买方利益最大化出发制定订货策略，这种考虑问题的角度在实际经济生活中受到了挑战。
It is a challenge that the basis of optimization ordering policy in inventory theory is maximum benefit of buyer.
提出了在经济批量环境下制定折扣价格的另一种方法，即把卖方和买方利益结合起来的带有数量折扣的定价方法。
An alternative method for discount pricing is proposed under the EOQ environment. The benefits to for buyers and sellers are considered by using this method.
向使用服务的人收取“报名费”然后一首歌低的，固定不变的下载成本同时顾及了购买方和销售方的利益。
Charging an "entry fee" for use of the service and then a small, fixed per-song cost for downloads turned out to benefit both the seller and the buyer.
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