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本文在基准回购契约模型中考虑以客户作为低碳评判标准,以其购买量作为供应链零售的实际销售量,在此基础上分析供应商和零售商在回购契约中的利润和成本。为了解决供应商无法约束零售商导致生态供应链无法实现协调的问题,构建考虑惩罚因子的回购契约模型,并在此基础上给出在实现生态供应链协调条件下的惩罚值。最后给出在VaR和CVaR条件下的风险识别值和与各市场结合的相对物流风险值,向生态供应链中的供应商和零售商提供风险政策制定和控制的依据。
In this paper, we take the customer as the low-carbon criterion in the model of the benchmark buy-back contract, and take the purchase amount as the actual sales volume of the supply chain retail. On this basis, we analyze the profit and cost of the supplier and the retailer in the repo contract. In order to solve the problem that the supplier can not restrain the retailer from coordinating the ecological supply chain, a repurchase contract model considering the penalty factor is constructed, and on the basis of which, the penalty value under the condition of ecological supply chain coordination is given. Finally, the risk identification value under VaR and CVaR conditions and the relative logistics risk value combined with each market are given, and the basis of risk policy making and control is provided to the suppliers and retailers in the ecological supply chain.