Abstract: This paper studies at the single period on-time delivery model of multi-suppliers,which is based on the Supply Hub.Under the stochastic demand time,suppliers choose the optimal delivery time by themselves in purpose of cost minimization This paper analyzes the optimal delivery time of different suppliers in the situation of information sharing and information isolation.By comparing the effect of optimal delivery time at the cost of suppliers and service level to manufacturer,We demonstrate that it could effective reduce the cost and improve the service level when suppliers adopte cooperation.We find out the optimal delivery policy of suppliers in context of information sharing and also a policy raised by Supply Hub.

Key words: complementary supply, stochastic demand time, Supply Hub, information sharing, service level