Multi Period Supply Chain Network Equilibrium Under Delay In Payment

As a form of commercial credit,delay in payment can not only mitigate the pressure of enterprise funds,but also reduce inventory,promote consumption and expand market demand.Therefore,delay in payment has been widely used in enterprise.In addition,with the increasingly fierce market competition,the introduction of reverse logistics and remanufacturing and the development of e-commerce sale channel,the structures of supply chain have changed significantly.Based on the above background,this paper discusses multi-period traditional forward supply chain network equilibrium problem,the multi-period closed loop supply chain network equilibrium problem and multi-period dual-channel supply chain network equilibrium problem with consideration of delay in payment.The content and innovation are as follows:(1)Under stochastic demand,the multi-period traditional supply chain network equilibrium model with two level delay-in-payments is established.The optimal behaviors for manufacturer layer,retailer layer and the demand market layer are described respectively based on variational inequality theory,and then the governing multi-period supply chain network equilibrium condition can be obtained.The projection and contraction algorithm is given to solve the variational inequality problem.Combined with the numerical analysis,the impact of two level delay-in-payments(the delay periods and the delay potions)from manufacturer-to-retailer and retailer-to-consumer market on the network equilibriums and profit allocation are investigated.(2)By introducing collection and remanufacturing into the traditional supply chain network,the multi-period closed-loop supply chain network equilibrium model with third-party collection and delay-in-payment are established.Combined with the numerical analysis,the impact of delay-in-payments provided by retailers to consumer markets on the closed loop supply chain network equilibriums and profit allocation are investigated.(3)By introducing e-commerce sale channel into the traditional supply chain network,the multi-period dual channel supply chain network equilibrium model with two level delay-in-payments are established.Combined with the numerical analysis,the impact of two level delay-in-payments from manufacturer-to-consumer market and retailer-to-consumer market on the network equilibriums,profit allocation and the consumers' choice of purchase channel are examined.The conclusions can provide theoretical support and important reference for the enterprise to reasonably adopt delay in payment policy in complex supply chain network environment.