A three-echelon system dynamics model on supply chain risk mitigation through information sharing

Author(s):  
Haobin Li ◽  
Loo Hay Lee ◽  
Ek Peng Chew ◽  
Yuanjie Long
2018 ◽  
Vol 7 (4) ◽  
pp. 20-37 ◽  
Author(s):  
Ehsan Gale Gafi ◽  
Nikbakhsh Javadian

The Iranian chicken industry has always been encountered to high and fluctuated chicken prices. The purpose of this article is to find the best choice to prevent chicken prices from increasing more by investments. System dynamics methodology has been used to modeling, evaluating and optimizing chicken supply chain. Considering the existing capabilities for improvement in supply chain and experts opinion, these strategies were proposed; “reduction of breeding period,” “modernization of production facilities,” “Increase in pellet feed production” and “energy conservation.” After implementing the model and testing various scenarios, strategies were prioritized based on key indicators. At last modernization of production facilities is introduced as the best strategy for the next three years.


Author(s):  
Mathias Doetzer ◽  
Alexander Pflaum

PurposeInformation-sharing and flexibility are considered to be major tools for risk mitigation and supply chain resiliency. However, less light has been shed on the role of information-sharing as an enabler to utilize flexibility capabilities before and after supply chain disruptions. The aim of this paper is to provide indications on how digitalized information-sharing (DIS) enhances flexibility capability utilization.Design/methodology/approachThe methodology follows a qualitative approach, including 31 transcribed semi-structured interviews with supply chain experts in Germany and Japan.FindingsThe findings indicate that DIS supports flexibility capability utilization in pre- and post-disruptive supply chain management. First, the enhancement of estimated transport time accuracy supports rapid supplier and transport mode adjustment. Second, while the effects of DIS in manufacturing are limited without pre-existing flexibility capabilities, steady internal and external DIS utilizes exciting manufacturing flexibility to cope with disruptions beyond production. Third, track and trace technologies enhance the value of shared data and allow flexibility in the form of demand-oriented distribution, but companies unable to adopt technologies can still enhance flexibility capabilities with DIS using the existing infrastructure.Originality/valueThis paper highlights the essential role of digital information-sharing for flexibility utilization in supply chain risk management. While existing studies engaged with flexibility and information-sharing in supply chain risk management, this study contributes by emphasizing digital information-sharing as a key triggering enabler for flexibility in pre- and post-disruptive phases.


2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Xiao-qing Zhang ◽  
Xi-gang Yuan

With the technological developments and rapid changes in demand pattern, diverse varieties of electronic products are entering into the market with reduced lifecycle which leads to the environmental problems. The awareness of electronic products take-back and recovery has been increasing in electronic products supply chains. In this paper, we build a system dynamics model for electronic products closed-loop supply chain distribution network with the old-for-new policy and three electronic products recovery ways, namely, electronic products remanufacturing, electronic component reuse and remanufacturing, and electronic raw material recovery. In the simulation study, we investigate the significance of various factors including the old-for-new policy, collection and remanufacturing, their interactions and the type of their impact on bullwhip, and profitability through sensitivity analysis. Our results instruct that the old-for-new policy and three electronic products recovery ways can reduce the bullwhip effect in the retailers and the distributors and increases the profitability in the closed-loop supply chain distribution network.


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