Study On EOQ And Inventory Strategies Based On Multi-warehouse And Permissible Delay Of Payment

Due to uncertain demand or the upper reaches of the discount and other reasons, retailers tend to increase their order quantity, the traditional single warehouse has been unable to meet the storage needs of retailers, retailers need to reasonable selection of two-warehouse or multi-warehouse to store their goods, to reduce their costs and increase their income. And suppliers in order to improve their sales, increase revenue will give retailers to provide a deferred payment of preferential policies. When the supplier offers a discount to the retailer, the retailer will need to consider it’s own order quantity, at the same time retailers also need to consider how to choose appropriate storage methods for storage of goods and minimize their cost when faced with multi-warehouse. Therefore, this paper focuses on under the condition of deferred payment of two-warehouse optimal order quantity and multi-warehouse inventory strategy under in payment research.The research work of this paper mainly includes two aspects:the first part suppose in the two-warehouse system the supplier providing retailers deferred payment when the retailer meets the conditions of deferred payment, that is, only when the retailer’s order quantity is greater than or equal to the minimum order quantity W specified by the supplier, to allow retailers to postpone payment, otherwise not allow to delay payment, under these conditions, a corresponding model is established, and the analysis is carried out to determine the order strategy to minimize the cost of the retailer; the second part discusses in the multi-warehouse system the retailers how to decide inventory storage when the suppliers allow the retailers deferred payment, multi-warehouse system mainly includes own warehouse、leased warehouse and spot market warehouse, the characteristics of the rented warehouse is whether or not storage quantity reached it’s maximum capacity to pay for the whole warehouse, while the market warehouse is very flexible, according to the actual demand to rent warehouses, so the cost of the retailer’s will be affected by inventory strategy, so retailers will choose their proper way according to different orders to minimize the cost of inventory, this paper sets up the corresponding model, through analysis and discussion to get the corresponding conclusion. The results of this study has a certain theoretical significance to enrich the theory of inventory management, it has certain practical significance for guiding retailers scientific order and reasonable storage.