Optimal Decisions for a Fuzzy Two-Echelon Supply Chain

Table 1

Relationship between linguistic expression and triangular fuzzy variable.

	Linguistic expression	Triangular fuzzy variable
𝑐	Low (about 1)	(0.5, 1, 1.5)
	Medium (about 2)	(1.5, 2, 2.5)
	High (about 3)	(2.5, 3, 3.5)
𝑎	Large (about 700)	(600, 700, 800)
	Small (about 500)	(400, 500, 600)
𝑏	Very sensitive (about 40)	(30, 40, 50)
	Sensitive (about 20)	(10, 20, 30)
𝑘	Very sensitive (about 8)	(7, 8, 9)
	Sensitive (about 6)	(5, 6, 7)
𝑙	Very sensitive (about 3)	(2, 3, 4)
	Sensitive (about 1)	(0.5, 1, 1.5)