Optimal Inventory Policy Involving Ordering Cost Reduction, Back-Order Discounts, and Variable Lead Time Demand by Minimax Criterion

Table 1

Lead time data.

Lead time component	Normal duration	Minimum duration	Unit crashing cost
𝑐𝑖	𝑝=0,0.2,0.4,0.6,0.8,1 (days)	𝑞=0.2 (days)	𝛿=0,0.5,1 ($/day)
1	20	6	0.4
2	20	6	1.2
3	16	9	5.0