“…Incentives offered to each participant are: G 1 = 298, G 2 = 341, G 3 = 268, G 4 = 314. The parameters used for AGPSO are as follows [ 39 , 40 , 63 , 64 ]: nPOP = 150, nREP = 20, W = 0.5, R 1 = 1, R 2 = 2, nGrid = 9, α = 0.1, β = 2, λ = 2, mut = 0.1, TS = 40, L k = 1500, L v = 200, M k = 1500, M v = 500, θ 1 = 0.05, θ 2 = 0.1. We consider two collaborative forms in this study, and 52 working periods are included in a year.…”