Demand Effect By Inventory Level Model Research

In the economic life in reality, people pay attention to the sale of goods is sometimes shelves goods volume effects, namely demand rate is dependent on the level of inventory. Subsequently, a large number of researchers have carried on research to this problem and discuss, made a series of achievements. However, the existing research results, often set inventory costs unchanged. In fact, the enterprise in order to pursue the maximum of profit, of the stock of goods are usually processed by different methods, in this way, the inventory cost will change. To the enterprise, reduce inventory costs can increase revenue. Thus the inventory cost variable has become an important research topic. In the items in an inventory would deteriorate, especially for some fresh fruits and vegetables, however the traditional inventory control theory usually assumes that the goods will not deteriorate, obviously this is not consistent with the actual situation. The discussion for the deterioration is currently limited to items deteriorate, without considering the recycling, which caused a certain amount of waste. Pay attention to inventory cost variable, items will deteriorate and the deterioration of recycling and other issues, this article from the following aspects of research:(1) demand rate is affected by initial inventory of inventory model, this paper set the variable, inventory cost inventory items may deteriorate, metamorphic products after processing can still be used for sales or production;(2) the current inventory level dependent demand rate inventory model, considering the current inventory level dependent demand rate factors, this article from the inventory and inventory time two angles discuss the demand rate is affected by the current inventory level dependent;(3) with inventory level dependent demand rate multiple warehouse inventory model, this is because, in real life, sometimes enterprises owned warehouse can not meet the demand, thereby taking into account the hire someone to warehouse, i.e. multiple warehouse inventory model. This paper establishes a two warehouse inventory model, in this model, consider the delayed payment, the deterioration, deteriorating items for sale or production continued after treatment.