A Particle Swarm Optimization Algorithm for Solving Pricing and Lead Time Quotation in a Dual-Channel Supply Chain with Multiple Customer Classes

Table 4

Comparison of retailer and direct prices under both decentralized and centralized supply chain.

Problem number
	1	−5.20	−5.99	−0.23	0.88	0.15	0.00	0.06	−0.36	−1.94	−0.93	−0.06	0.00
2	−5.24	−5.74	0.15	0.65	0.37	0.02	−0.19	−4.24	−5.18	−1.39	−0.36	−0.01
3	−0.45	−0.44	−0.97	0.05	0.00	−0.05	−0.05	−0.08	−0.12	−0.05	0.00	−0.01
4	−5.64	−4.52	0.19	−0.02	0.37	0.01	−0.26	−4.64	−4.92	−2.16	−0.36	−0.01
5	−0.82	−1.11	−0.86	0.44	0.01	−3.49	0.03	−0.02	−0.07	−0.14	0.00	−0.62
6	−4.47	−3.76	−0.34	−0.01	0.27	−3.81	−1.53	−5.06	−5.06	−2.18	−0.61	−0.69
7	−4.22	−4.22	−1.53	0.00	0.00	0.00	1.28	1.28	0.47	0.00	0.00	0.00
8	−5.24	−6.21	−1.32	−0.79	−0.58	−0.37	−0.19	−5.31	−6.99	−4.20	−3.08	−1.97
9	−0.78	−1.42	−1.07	0.68	1.29	−5.67	0.67	0.55	0.46	−0.28	−0.29	−1.25
10	−5.31	−4.60	−1.82	−0.74	−1.42	−6.64	−1.74	−5.44	−7.01	−4.46	−3.20	−2.89
11	−4.99	−4.99	−2.63	0.00	0.00	−0.76	1.14	1.14	0.29	0.00	0.00	−0.11
12	−5.24	−5.96	−1.32	−0.79	−0.58	−1.41	−0.19	−5.34	−6.99	−4.20	−3.08	−1.94
13	0.00	0.00	0.00	0.00	0.00	0.45	0.00	0.00	0.00	0.00	0.00	−0.10
14	0.00	0.00	0.00	0.00	0.00	0.02	0.00	0.00	0.00	0.00	0.00	−0.01
15	0.00	0.00	0.07	0.09	−0.01	−3.96	0.00	0.00	0.01	0.02	0.00	−0.69
16	0.00	0.00	0.00	0.00	0.00	−3.81	0.00	0.00	0.00	0.00	0.00	−0.69
17	0.00	0.00	−0.01	0.05	0.00	0.28	0.00	0.00	0.03	0.01	0.00	−0.14
18	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.00	0.00	0.00	0.00	−0.01