Research On Partial And Double - Layer Deferred Payment Strategy With Subordinate

In real life, when suppliers selling products, in order to stimulate retailers to increase the quantity of goods, suppliers often adopt a variety of promotions. Delay in payment is a common way of promotion. Delay in payment means the retailer don’t require to pay immediately when receiving goods, but pay for goods after a deferred payment deadline provided by the supplier. In order to reduce risk, accelerate cash flow, suppliers often offer a price discount, incentive retailers to pay part of payment for goods first.Considering in the trading activities, goods enter circulation channels will incorporate different proportions of defective items. Accordingly, on the basis of previous studies, this paper considers the situation of the products contain a proportion of defective items. From the perspective of maximizing the retailer’s profit, we establish a model of partially permissible delay in payments based on a threshold quantity and a model of two levels of trade credit policy respectively. The article is divided into four parts:The first chapter is the introduction part, mainly introduces the concept of inventory and inventory management. Then we describe the causes of inventory produced and the function of inventory. And we explain the importance and necessity of the research for defective items in the inventory system.In chapter two, considering two-echelon supply chain containing part of defective items, we establish a model of partially delay in payments based on a threshold quantity. We establish an inventory model to maximize the retailer’s profit per unit time. The method of calculating the optimal replenishment cycle and the optimal order quantity of qualified products are given respectively. At last, numerical examples are made to illustrate the validity of this model.The third chapter, for a three-level supply chain composed of a single supplier, a single retailer and customers, the supplier offers a price discount for retailers pay part of payment for goods first. We establish a model of two levels of trade credit policy. By model analysis and solving, the retailer’s optimal order strategy and the best way of payment for goods delivery are given. At last, numerical examples are made to illustrate the validity of this model. And we study the influences of the proportion of delay in payments and the price discount factor on the retailer’s optimal decision.In chapter four, we summarize the main work done and the basic conclusions we get in this paper.