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Mitigating supply chain disruptions - a normal accident perspective

机译：缓解供应链中断-正常事故的角度

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Purpose - Existing supply chain literature provides examples of countermeasures that firms can adopt to mitigate abnormal or catastrophic supply chain disruptions. However, none address reducing interactive complexity prior to adopting countermeasures to mitigate everyday or normal supply chain disruptions. Most mitigation strategies focus on adding capabilities or resources to protect an organization. Here, the authors aim to consider an alternative strategy of examining current processes to determine whether processes can be simplified by using the normal accident theory and its constructs of interactive complexity and coupling as a theoretical basis. Design/methodology/approach - The authors develop a model based on the normal accident theory and use logistic regression to test their propositions in the context of a steel processing plant and its customers. Findings - The findings show the importance of reducing interactive complexity to mitigate supply chain disruptions. However, high inventory is not considered a significant countermeasure, and high inventory levels may increase the likelihood of causing a disruption downstream. These findings support the lean management approach of operating under low inventory levels while eliminating complexity to make problems more visible, causing fewer disruptions. Originality/value - While others have examined the impact of mitigation strategies conceptually, no study has captured information from actual supply chain disruptions to assess how interactive complexity and inventory levels affect disruption potential at downstream customers' facilities. Capturing information from supply chain disruptions enables managers to assess the situation as the disruption is occurring. The authors suggest a strategy in which countermeasures that increase slack in the system should be considered only after the system is sufficiently simplified to mitigate disruptions.
机译：目的-现有的供应链文献提供了企业可以采取的缓解异常或灾难性供应链中断的对策示例。但是，在采取对策来减轻日常或正常的供应链中断之前，都没有解决降低交互复杂性的问题。大多数缓解策略都侧重于添加功能或资源来保护组织。在这里，作者的目的是考虑一种检查当前过程的替代策略，以确定是否可以通过使用正常事故理论及其交互复杂性和耦合结构作为理论基础来简化过程。设计/方法/方法-作者开发基于正常事故理论的模型，并使用Logistic回归在钢铁加工厂及其客户的环境中测试其命题。调查结果-调查结果显示了降低交互复杂性以减轻供应链中断的重要性。但是，高库存不被认为是重要的对策，高库存水平可能会增加导致下游中断的可能性。这些发现支持在低库存水平下运行的精益管理方法，同时消除了使问题更明显，减少中断的复杂性。独创性/价值-尽管其他人从概念上研究了缓解策略的影响，但尚无研究从实际供应链中断中获取信息来评估互动的复杂性和库存水平如何影响下游客户设施的中断潜力。从供应链中断中获取信息，使管理人员可以在中断发生时评估情况。作者提出了一种策略，在这种策略中，只有在充分简化系统以减轻干扰之后，才应考虑增加系统松弛的对策。

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