The price of an illegal substance is determined more by the cost of distribution than of production.
非法药品价格更多的是由销售成本而不是生产成本决定的。
An optimization model was proposed to integrate operation decisions of distribution center by taking into account both the transportation and inventory cost of distribution centre and customers.
为实现配送中心运作决策一体化,构建多物品两级库存和运输决策优化模型。
Companies devote themselves to creating them because the cost of distribution and the limits of shelf space in physical shops mean that profitability depends on a high volume of sales.