Designing a Multistage Supply Chain in Cross-Stage Reverse Logistics Environments: Application of Particle Swarm Optimization Algorithms

Table 9

Multiple comparison on objective function.

	ObjGA	ObjPSOA_IWM	ObjPSOA_VMM
ObjPSOA_IWM	(−, +)
ObjPSOA_VMM	(−, −)	(−, −)
ObjPSOA_CFM	(+, −)	(−, +)	(+, +)