逆向物流闭环双层优化模型及算法

目前,资源短缺使得许多企业的生产成本不断增加,一些生产商为了降低成本,开始开展回收再生产.这种回收再生产,不但可以减少生产成本,还可以节约社会资源、减少废弃产品对环境的破坏等.但是,回收废旧产品同样需要成本,有些产品在回收过程中的成本远大于利用原材料来生产的产品的成本. 因此,并不是所有的企业都愿意开展回收工作.在本文将就这一问题,通过建立以政府为上层,企业为下层的双层优化模型,并通过求解该模型给出了政府如何对回收成本不同的企业制定不同的奖、罚政策,才能既使各企业既能主动开展回收再生产,又能自觉将其在生产中对环境等的不良影响降至最低,使企业在满足国家可持续发展的要求下达到最优.

A Closed-Loop Reverse Logistics Bi-level Programming Model and Algorithm

Limited resources have made the cost of the factories higher and higher than before.In order to reduce the cost,some factories plan to reuse the old goods to produce.In fact,remanufacturing not only can reduce the cost of factories,but also can protect our environment and save our resources.Hence,some governments in the world have constituted some laws and regulations to encourage or force the companies to remanufacture.But reclaiming the old goods also need cost.In fact,the cost of producing some kinds of products with old goods may be higher than that of producing them with raw materials.Hence,not all factories would like to remanufacture.In this paper,we will study how the government lays down the hortative regulations for the factories to make them willing to remanufacture by establishing a bi-level model.And we will give some advice to both the government and the factories by analyzing the solutions to the model.