联合契约下港口服务供应链应对突发事件策略

Port Service Supply Chain Response Strategies for Emergencies under Joint Contract

针对突发事件中市场需求受服务水平影响时港口服务供应链的协调问题,构建由港口企业和物流服务提供商组成的二级港口服务供应链决策模型,探究收益共享—成本分担(RS-CS)联合契约在实现供应链协调时成员的最优决策。研究结果表明,基准的收益共享契约无法实现港口服务供应链的协调,物流能力订购量服务水平均会低于集中决策模型,RS-CS契约可以有效协调港口服务供应链,激励物流服务提供商提高服务水平;突发事件会影响原本契约协调的有效性,可通过修改契约参数调整服务价格再次协调港口服务供应链。数值算例通过分析相关参数及需求分布变化对最优决策的影响,验证了模型的有效性和可靠性。

Aiming at the coordination of port service supply chain when market demand is affected by service level in emergencies,a two-stage port service supply chain decision model consisting of port enterprises and logistics service providers is constructed to investigate the optimal decision of members in achieving supply chain coordination by a joint revenue sharing-cost sharing(RS-CS)contract.The results show that the benchmark revenue sharing contract cannot achieve coordination of the port service supply chain,and the service level and optimal decision of the supply chain members will be lower than the centralized decision model,and the RS-CS contract can effectively coordinate the port service supply chain and motivate the logistics service providers to improve their service level.However,emergencies will affect the effectiveness of the original contract coordination,which can be achieved by modifying the contract parameters to adjust the service price and recoordinating the port service supply chain..The numerical example part verifies the validity and reliability of the model by analyzing the influence of relevant parameters and demand distribution changes on the optimal decision.