A System Dynamics Model for Studying the Policies of Improvement of Chicken Industry Supply Chain

2018 ◽  
Vol 7 (4) ◽  
pp. 20-37 ◽  
Author(s):  
Ehsan Gale Gafi ◽  
Nikbakhsh Javadian
Keyword(s):  
Supply Chain ◽  
Energy Conservation ◽  
System Dynamics ◽  
Breeding Period ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Feed Production ◽  
Key Indicators ◽  
Pellet Feed ◽  
Production Facilities

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.

scholarly journals The System Dynamics Model in Electronic Products Closed-Loop Supply Chain Distribution Network with Three-Way Recovery and the Old-for-New Policy

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Xiao-qing Zhang ◽  
Xi-gang Yuan
Keyword(s):  
Supply Chain ◽  
System Dynamics ◽  
Closed Loop ◽  
Distribution Network ◽  
Bullwhip Effect ◽  
Raw Material ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Closed Loop Supply Chain ◽  
Electronic Products

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.

Sign in / Sign up

Export Citation Format

Share Document