碳限额与交易政策下的复杂供应链生产决策研究
首发时间:2018-09-25
摘要:本文关注低碳环境下一种装配式复杂供应链企业生产优化问题,链中企业既要考虑上下游之间的关联需求,还要同时应对来自供应链外部的市场随机需求。在碳限额与交易的碳排放规制下,企业面对两种需求以及企业间的竞争需要在组织生产(消耗甚至购买碳排放额)以销售产品和直接出售碳配额之间做权衡。因此本文构建相应的碳限额与交易下的复杂供应链企业分散决策时的生产优化模型,证明并将其转化为变分不等式均衡模型,给出了针对此问题的具体算法。在此基础上,通过数值算例分析分别研究了碳排放权交易价格和企业碳限额与制造商利润和实际碳排放量的关系。研究结果表明,在一定条件下提高碳排放交易价格会降低制造商碳排放量,同时不会牺牲制造商利润;但减少某一家制造商的碳配额,所有制造商的碳排放量和利润都会减少。以上现象与企业之间的需求关联和外部随机扰动都有密切关系。
关键词: 供应链决策 生产优化 碳限额与交易 均衡 变分不等式理论
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Production Decision for Complex Supply Chain under Cap and Trade Policy
Abstract:This paper considers an assembly supply chain system under low-carbon environment to explore the production optimization problem of chain firms. Each firm simultaneously faces the inside dependent demand and outside independent demand of the supply chain.Given the regulative Cap and Trade policy, a firm confronting two kinds of demands and competition needs to make trade-off between one option of consuming and even purchasing emission permits to produce and sell goods and the other of just simply vending her surplus emission rights to the trade market by curbing production. We therefore construct production-optimizing models for thedecentralized complex supply chain subject to the Cap and Trade regulation. We further prove and transform the problem to the representation of Variantional Inequality approach and accordingly specify the solving algorithm, which enable us to conduct numerical experiments to validate previous models as well as equilibriums. The computational studies examines the relationships of carbon trading prices, emission quota, profits and emission volumes of chain members. The results show that, under certain conditions, increasing carbon trading prices may not only reduce manufacturers\' carbon emissions but also increase their profits, and furthermore reducing carbon quotaof a certain firmlikely reduces all firms\' carbon emissions and profits. The foregoing phenomenon is to a large extent attributable to inside-chain demand dependence and perturbation of outside stochastic demand.
Keywords: Supply chain decision Production optimization Cap and trade Equilibrium variational inequality theory
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碳限额与交易政策下的复杂供应链生产决策研究
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