A Class of Expected Value Bilevel Programming Problems with Random Coefficients Based on Rough Approximation and Its Application to a Production-Inventory System

Table 2

Other parameters in the production-inventory system.

Product	Item 1	Item 2	Item 3	Item 4	Item 5
Unit selling price 𝑡𝑖	100	80	60	85	100
Unit storage cost ℎ𝑖	10	6	12	8	10
Unit shortage cost 𝑝𝑖	40	35	30	45	50
Unit storage area 𝑘𝑖	5	8	6	5	8
Production cost in plant 𝑗	15/12	8/10	4/4	10/9	14/15