Low-Carbon Supplier Selection Using Fuzzy AHP and Goal Programming Approach

Table 2

Fuzzy judgment matrix of expert evaluation criteria.

	Product cost (C1)	Product quality (C2)	Service quality (C3)	Product carbon emission (C4)
Product cost (C1)	(1, 1, 1)	(1/2, 1, 5/4)	(1, 2, 5/2)	(7/3, 3, 13/4)
Product quality (C2)	(4/5, 1, 2)	(1, 1, 1)	(1/2, 2, 9/4)	(5/4, 2, 5/2)
Service quality (C3)	(2/5, 1/2, 1)	(4/9, 1/2, 2)	(1, 1, 1)	(1, 2, 9/4)
Product carbon emission (C4)	(4/13, 1/3, 3/7)	(2/5, 1/2, 4/5)	(4/9, 1/2, 1)	(1, 1, 1)