Optimizing the Joint Replenishment and Channel Coordination Problem under Supply Chain Environment Using a Simple and Effective Differential Evolution Algorithm

Table 5

Comparison between independent replenishment and JR-CC policy.

	IR		JR-CC		Cost reduction
	DE (IDE)	Hsu [14]	DE (IDE)	Hsu [14]
Cost of retailer	6700.3		4604.4		31.28%
Cost of manufacturer 1	931.4354		923.6882		0.83%
Cost of manufacturer 2	673.8471		647.3242		3.94%
Cost of manufacturer 3	637.0856		636.6200		0.07%
Cost of the supply chain	8942.7*	8942.64*	6812.0	6811.99	23.83%
Shipment cycle time 𝑇	𝑇1=0.0312	𝑇1=0.031	𝑇=0.023	𝑇=0.023
	𝑇2=0.0369	𝑇2=0.037
	𝑇3=0.0337	𝑇3=0.034
𝐾^∗	𝑘1=3	𝑘1=3	𝑘1=4	𝑘1=4
	𝑘2=4	𝑘2=4	𝑘2=7	𝑘2=7
	𝑘3=4	𝑘3=4	𝑘3=6	𝑘3=6

∗Represents the meaning of “the optimal”, which had been hinted in Section 2.2 and Section 2.3.