Table 1: Relation between linguistic expression and triangular fuzzy variable.

Linguistic expressionTriangular fuzzy variable

Low (about 7) (6, 7, 9)
Remanufacturing cost Medium (about 11) (9, 11, 14)
High (about 16) (14, 16, 19)
Low (about 17) (15, 17, 20)
Manufacturing cost Medium (about 23) (20, 23, 25)
High (about 29) (25, 29, 35)
Market base Large (about 400) (300, 400, 450)
Small (about 200) (150, 200, 280)
Price elasticity Very sensitive (about 0.8) (0.6, 0.8, 0.9)
Sensitive (about 0.5) (0.3, 0.5, 0.6)
Low (about 2) (1, 2, 3)
Taking back transfer cost Medium (about 4) (3, 4, 5)
High (about 6) (5, 6, 8)
Low (about 500) (450, 500, 650)
Scaling parameter Medium (about 800) (700, 800, 1000)
High (about 1100) (1000, 1100, 1300)
Low (about 550) (400, 550, 650)
Scaling parameter Medium (about 850) (650, 850, 1000)
High (about 1200) (1000, 1200, 1300)