Action of Traffic Measures on Supply Chain Network Equilibrium

2014 ◽  
Vol 641-642 ◽  
pp. 866-870
Author(s):  
Wei Cao ◽  
Xi Zhang ◽  
Shou Wen Ji
Keyword(s):  
Supply Chain ◽  
Variational Inequality ◽  
Iterative Algorithm ◽  
Freight Transport ◽  
Network Equilibrium ◽  
Traffic Network ◽  
Supply Chain Network ◽  
Link Capacity ◽  
Numerical Example

The decision of freight transport are typically made for SCNE(Supply Chain Network Equilibrium),and its behavior is known to be influenced by regional conditions of traffic network,but little is known about role of traffic measures which have efficiency on SCNE.Unlike other studies in the extent literature,we aimed to cover the interaction between traffic measures and SCNE. We formulated variational inequality in terms of strategies and strategic flows as SCNE conditions.We employed an iterative algorithm of MSA to this variational inequality by solving a dynamic program.A numerical example proves the validity of our model and algorithm,and we show that our algorithm has faster convergence ability than existing algorithms.Moreover,results show that the amount of products and surpluses of SCN increase as traffic link capacity increases.We conclude that improvement of traffic network could enhance the efficiency of SCN.

scholarly journals A Supply Chain-Logistics Super-Network Equilibrium Model for Urban Logistics Facility Network Optimization

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Yongyi Su ◽  
Jin Qin ◽  
Peng Yang ◽  
Qiwei Jiang
Keyword(s):  
Decision Making ◽  
Supply Chain ◽  
Variational Inequality ◽  
Network Optimization ◽  
Equilibrium Model ◽  
Network Equilibrium ◽  
Supply Chain Network ◽  
Logistics Network ◽  
Supply Chain Logistics ◽  
Inequality Theory

The logistics facility decisions may be the most critical and most difficult of the decisions needed to realize an efficient supply chain since these decisions have significant effects on the logistics costs generated in the logistics network. We establish a logistics super network equilibrium integrating urban logistics facilities with members of traditional supply chain network, using the variational inequality theory. This model takes into account the behavior of logistics facilities and the transactions between retailers and logistics facilities are examined in this paper. Furthermore, we obtain the equilibrium condition of the system, and the economic explanation and algorithm are given. Finally, some verification examples are provided to verify the solution and decision-making application.

A New Type of Algorithm for the Variational Inequalities on Supply Chain Economic Equilibrium Model

2011 ◽  
Vol 267 ◽  
pp. 344-349
Author(s):  
Lei Wang
Keyword(s):  
Supply Chain ◽  
Variational Inequality ◽  
Variational Inequalities ◽  
Error Bound ◽  
Equilibrium Model ◽  
Global Error ◽  
Network Equilibrium ◽  
Supply Chain Network ◽  
Global Error Bound ◽  
New Type

In this paper, we consider an algorithm for variational inequality(VI) problem on the supply chain network equilibrium model, which is established by Dong et al.. To this end, we first develop a global error bound for VI, which can be taken as an extension of the existing global error bound for VI, then present the convergence analysis of the method for solving the variational inequalities, and the convergence rate are also given under same conditions.

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