A Developed Mathematical Model for Designing a Multilevel Sustainable Supply Chain Network Taking into Account Environmental Decisions

Table 4

Epsilon constraint output for solved examples.

Test problem	MID	Max-spread	CPU time
1	14.434	10.821	6.65
2	15.393	11.330	13.28
3	16.023	13.924	84.47
4	16.828	14.454	458.80
5	18.037	15.564	1065.23
6	20.162	22.265	1381.91
7	21.523	28.920	2707.90
8	22.113	40.798	3600.00
9	22.915	42.313	3600.00
10	0.000	0.000	Not solved
Average	18.603	22.265	1435.360