Inventory Model Research Of Apparel Products With Separate Price In Two Stages

Nowadays, the problem of high inventory always exists for clothing enterprises. On the One hand, this will reduce the inventory turnover rate ,and the high-proportion of inventory in the enterprise assets will cause a lot of pressure to enterprise’s operating cash flow. On the other hand, due to factors such as changing season, popular trend change and other factors, if the clothing inventory digestion is too slow, the clothing will appear different degree of loss, making it harder to sale, this will also produce adverse effect to the management benefit for the clothing enterprise. In this paper, we take the research idea of perishable commodities as reference, and construct the reasonable inventory model of clothing enterprise so as to provide advices for the clothing enterprise to carry out inventory optimization.In this paper, according to the characteristics of seasonal sales, we divide the clothing sales into in-season and the discount stage, building demand function of both stage and set price separately. When not considering the promotion, the demand of clothing in in-season is a linear function related to the price, while in the discount stage, we introduce the clothing metamorphic factors, the demand is a function of the price and time. When considering the promotion factor, we introduce the promotion factor in in-season, making the demand function is related to price and promotion, and the demand function is still related to the price and the time in the discount stage. Using piecewise demand function of the sales cycle, and combined with the characteristics of inventory changes, we construct the whole sales cycle inventory model in two cases. Through analysis of the model, it is proved that the model must have the appropriate pricing and optimal order quantity which can make the total profit maximized.Subsequently, we research the Enterprise K and get the related data. Using the Maple software, we solve the two models separately and give advice of pricing and optimal order quantity of the clothing enterprise according to the final result. Finally, we carry out a sensitivity analysis of the metamorphic factor and the promotional contribution factor and test the validity and feasibility of the inventory model.