Abstract
The paper establishes an inventory routing integrated model to economize the supply chain cost based on a supply chain composed of a single supplier, a third party logistics enterprise and multiple retailers. First of all, the paper acquires the optimal path arrangement for the third party logistics vehicles and the initial fixed partition through ant colony algorithm. Secondly, the paper calculates the total cost of the supply chain through the integral multiple sampling period and the fixed partition policies. Finally, the paper adjusts the third party logistics replenishment period for different partitions until the cost of supply chain comes to the minimum.
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