Optimal Ordering Policy and Coordination Mechanism of a Supply Chain with Controllable Lead-Time-Dependent Demand Forecast

Table 4

Values of 𝑡, 𝑠(𝑡) and 𝑦.

𝑡 (month)	12	9	6	3	0
𝑠(𝑡)%	40	23	19	15	10
𝑦=ln𝑠(𝑡)	3.6889	3.1355	2.9444	2.7081	2.3026