社区团购易耗农产品库存决策及协调策略

On Inventory Decision and Coordination Strategy of Easily Consumable Agricultural Products in Community Group Buying

为解决易耗农产品在社区团购中的库存与协调决策问题,分析易耗农产品的社区团购模式及其库存特点,研究易耗农产品在社区团购中的库存决策问题,建立基于订货批量和再订购点的库存总成本模型.首先,分析订货提前期的影响,计算订货周期长度,改进存储模型并建立库存总成本模型;其次,针对模型特点,改进梯度下降算法,求解该成本模型的极值解,并通过线性回归法对模型参数进行灵敏度分析;最后,以某农产品为例进行参数敏感性分析.结果表明:产品高需求率对库存总成本的影响较明显,成本利用率随着产品日均需求率的增加而提高.

The inventory and coordination decision-making of consumable agricultural products in community group buying(CGB)is faced with huge challenges.Based on the analysis of CGB mode and its inventory characteristics,the inventory decision-making problem of consumable agricultural products in the supply chain is studied in this paper,and a total inventory cost model based on order batch and reorder point is established.Firstly,the influence of order lead time is analyzed,the length of order cycle is calculated,the(s,S)storage model is improved,and a total inventory cost model is established.Secondly,according to the characteristics of the model,an improved gradient descent algorithm is used to solve the extreme value solution of the cost model,which the iterative step size is nonlinearly related to the gradient,and the sensitivity of the model parameters is analyzed by the linear regression method.Finally,taking a certain agricultural product as an example,through parameter sensitivity analysis,it is found that the impact of high product demand rate on the total cost of inventory is obvious,and the cost utilization rate increases with the increase of the average daily demand rate of the product.