A Fuzzy MCDM Approach for Green Supplier Selection from the Economic and Environmental Aspects

Table 2

Linguistic variables describing weights of the “HOWs” criteria.

Linguistic scale for importance	Triangular fuzzy scale = (, , )
Just equal	(1.0, 1.0, 1.0)
Equal importance	(1.0, 1.0, 3.0)
Weak importance	(1.0, 3.0, 5.0)
Strong importance	(3.0, 5.0, 7.0)
Very strong importance	(5.0, 7.0, 9.0)
Extremely importance	(7.0, 9.0, 9.0)
If factor has one of the above numbers assigned to it when compared to factor , then has the reciprocal value when compared with	Reciprocals of above