Research On Emergency Equilibrium Decision-making And Contract Coordination Of Supply Chains With Diseconomies Of Scale

Actually,supply chain is constrained by the backward technology level of the company and inefficient management capabilities.There will be problems of uneconomical production scale,and it will face various types of emergencies during normal operations.However,there are two shortcomings in the existing supply chain management theory.On the one hand,the supply chain emergency management theory rarely considers the scale uneconomic problem.On the other aspect,the scale diseconomial supply chain management theory rarely considers the emergency interference problem.Therefore,in this paper,the following studies have been carried out on the basis of the normal operation of the uneconomic supply chain of scale,taking into account the disruption of the largest market demand in the event of an emergency,and the occurrence of disturbances:(1)For the traditionally operated supply chain,an emergency equilibrium decision model for an uneconomical supply chain is constructed to address the problem of system disturbances in responding to the largest market demand scale,and then considering the existence of “dual marginal effect” in decentralized decision-making systems.The emergency revenue sharing contract improves the operational efficiency of the supply chain in the event of a demand disruption.(2)For the closed-loop supply chain that can take into account both economic and ecological benefits,an emergency equilibrium decision-making model for disparate-scale decentralized decision-making and centralized decision-making systems were constructed to address the problem of disturbances occurring in response to the largest market demand scale for each enterprise and system.Considering the decentralized decision,there will be a “dual marginal effect” in the two chains in the closed-loop supply chain,and the emergency revenue and cost sharing contract that can coordinate the two chains simultaneously are designed to improve the efficiency of the closed-loop supply chain and enterprises under the disturbance of demand.This study found that the decision-making of the normal operating system is robust under emergencies,and the emergency contract can coordinate the system under normal operating environment.