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.

scholarly journals Recycler Reaction for the Government Behavior in Closed-Loop Supply Chain Distribution Network: Based on the System Dynamics

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Xi gang Yuan ◽  
Xiao qing Zhang
Keyword(s):  
Supply Chain ◽  
System Dynamics ◽  
Government Policy ◽  
Distribution System ◽  
Closed Loop ◽  
Distribution Network ◽  
Bullwhip Effect ◽  
Order Quantity ◽  
Closed Loop Supply Chain ◽  
The Government

With system dynamics, we establish three-closed-loop supply chain distribution network system model which consists of supplier, manufacturer, two retailers, and products (parts) recycler. We proposed that recycler make reflect for the government policy by adjusting the recycling ratio and recycling delay. We use vensim software to simulate this model and investigate how the products (parts) recyclers behavior influences the loop supply chain distribution system. The result shows that (1) when recyclers respond positively to government policies, recycling will increase the proportion of recyclers. When recyclers respond negatively to government policy making, recycling will reduce the proportion of recyclers. (2) When the recovery percentage of recyclers improves, manufacturers, Retailer 1, and Retailer 2 quantity fluctuations will reduce and the bullwhip effect will diminish. (3) When the proportion of recycled parts recyclers is lowered, manufacturers, Retailer 1, and Retailer 2 inventory fluctuation will increase and the bullwhip effect will be enhanced. (4) When recyclers recycling product delays increased, volatility manufacturers order quantity will rise, but there is little change in the amount of fluctuation of orders of the two retailers. (5) When recycling parts recyclers delay increases, fluctuations in the supplier order quantity will rise, but there is little change in the amount of fluctuation of orders of the two retailers.

scholarly journals A System Dynamics Model to Evaluate Effects of Retailer-Led Recycling Based on Dual Chains Competition: A Case of e-Waste in China

2018 ◽  
Vol 10 (10) ◽  
pp. 3391 ◽  
Author(s):  
Renzheng Xue ◽  
Fengbin Zhang ◽  
Feng Tian
Keyword(s):  
Supply Chain ◽  
System Dynamics ◽  
Closed Loop ◽  
Electronic Waste ◽  
Waste Recycling ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Market Competitiveness ◽  
Negative Impacts ◽  
The Impact

China, as the largest electronic waste producer in the world, is facing a critical challenge to manage its negative impacts on the environment. Hence, e-waste management is crucial for sustainable Chinese economic development. In this paper, a system dynamics model is adopted to identify the effects of retailer-led recycling based on closed-loop dual chains competition. The influence of contracts made by manufacturers on different retail modes is also discussed. From the aspects of total revenue (TR), market share (MS) and market competitiveness (MC), this paper analyzes the impact of e-waste recycling coefficient (ERC) on supply chain and analyzes the equilibrium solution of total supply chain return. The research results show that the contract incentive mechanism can improve the retailer’s recycling enthusiasm, and the effect on the retail mode of executive shop is more obvious. When the ERC is adjusted to 44.3%, the TR of supply chain is optimal, and the MS and MC occupy an obvious advantage.

scholarly journals The Government’s Environment Policy Index Impact on Recycler Behavior in Electronic Products Closed-Loop Supply Chain

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Suchao He ◽  
Xigang Yuan ◽  
Xiaoqing Zhang
Keyword(s):  
Supply Chain ◽  
Environmental Policy ◽  
Closed Loop ◽  
Bullwhip Effect ◽  
Raw Material ◽  
Third Party ◽  
Reverse Supply Chain ◽  
Closed Loop Supply Chain ◽  
Environment Policy ◽  
Order Rate

We establish the model of multilevel closed-loop supply chain (CLSC) which included raw material supplier, manufacturer, distributor, retailer, and third-party recycler based on system dynamics (SD). Considering factors which influence recycler behavior-environmental policy index and recovery delay, we apply SD software—Vensim—to simulate CLSC model and study recycler behavior’s influence on the entire CLSC through calculating the bullwhip effect of all levels members order rate. Research shows that (1) the larger the environmental policy index, the greater the recycle proportion and the better the effect of weakening retailer’s order rate in forward supply chain, which however, increasingly, strengthen the reverse supply chain bullwhip effect, (2) the shorter the recovery delay, the better the effect of weakening the forward supply chain bullwhip effect and the longer the recovery delay, which increasingly weakens the reverse supply chain bullwhip effect, and (3) the effect of environmental policy index on the bullwhip effect of all levels members order rate is more significant than recovery delay.

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