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

Table 1

Main parameters.

Parameters	Time	Parameters	Time
Dynamics weeks	600 weeks	Component production time	1.5 weeks
Component production capacities	800 units/week	Sustainable time of component inventory	1.5 weeks
Material production delay	1 week	The capacity	850 units/week
Production time	1.5 weeks	Moving average period	1 week
The exchange rate	20%	Adjustment time of component inventory	2 weeks
Coefficient weight	0.8	Production delays	1 week
The delivery delay	1.5 weeks	Transportation delay	1 week
Order delay of distributor 1	1 week	Order delay of distributor 2	1 week
Processing ratio	10%	Retailer 1 order delay	1 week
The old recovery ratio	15%	Quantity of per electronic products	6 weeks
Component direct reuse ratio	45%	Delay time	40 weeks
Retailer 2 order delay	1 week	Component remanufacturing rate	45%
Sustainable time of the manufacturer’s inventory	1.5 weeks	Inventory adjustment time of manufacturers	2 weeks
Retailer 1 inventory adjustment time	2 weeks	Adjustment time of distributor 1 inventory	2 weeks
Adjustment time of distributor 2 inventory	2 weeks	Retailer 2 inventory adjustment time	2 weeks
Remanufacturing proportion	50%