基于JIT的供应商库存成本控制研究

发布时间：2018-04-14 17:41

本文选题：库存成本控制 + 安全库存　；参考：《中国地质大学(北京)》2015年硕士论文

【摘要】：现今市场竞争日趋激烈,库存成本成为供应商企业不得不关注的重点之一。产成品供应商作为供应链中不可缺少的一环,要想使自己的成本领先于行业中的其他企业,就必须对库存成本进行有效地控制。只有保持库存成本的最小化,才能有效降低供应商的总成本,从而保证供应商在市场竞争中立于不败之地。本文以产成品供应商为研究对象,基于JIT的管理思想,以库存成本控制为最终目标,对基于JIT的安全库存和订货批量问题,以及影响库存成本控制的关键点进行了深入分析。本文的主要研究内容如下:首先,在国内外研究现状和相关理论研究的基础上,采用文献查询法和定量分析法改进和完善理论模型。一方面,在传统(R,Q)策略的基础上加入了对安全库存量的考虑和分析,将传统的(R,Q)策略与考虑了需求量和提前期变化的安全库存量模型相结合,最终形成了引入安全库存量的新的(R,Q)策略模型;另一方面,在经典订货批量模型——基本EOQ模型的基础上,主要研究了需求服从正态分布的EOQ模型和考虑了缺货因素的EOQ模型。通过对这两个模型的分析和研究,探究订货批量的最优解,进而更加有效地控制库存成本,提高供应商的经济效益。然后,以某供应商销量前三名的品牌为例,运用定量分析法和实证研究法,计算改进模型中库存的最优持有成本、最优缺货成本、最优订货成本和最优总成本,并将其与实际运营中的库存成本作对比。最后,运用定性分析和定量分析方法,针对产成品供应商在库存成本控制方面存在的主要问题提出了相关建议。研究得出如下结论:第一,改进和完善了JIT方式下的安全库存模型,形成了引入安全库存量的新的(R,Q)策略模型;第二,形成了JIT方式下的订货批量模型,即需求服从正态分布的EOQ模型和考虑了缺货因素的EOQ模型;第三,在实证研究中,通过计算得出了该供应商的最优安全库存量、最优补货点和最优订货批量;并通过计算出的最优库存成本与实际库存成本进行对比,得出了最优库存成本低于实际库存成本的结论;第四,得出了基于JIT的库存成本控制的相关建议。
[Abstract]:Nowadays, the market competition is becoming more and more fierce, and inventory cost has become one of the key points that supplier enterprises have to pay attention to.As an indispensable part of the supply chain, the supplier of finished product must control the cost of inventory effectively if he wants to lead the other enterprises in the industry.Only by keeping the inventory cost minimized can the total cost of the supplier be effectively reduced and the supplier remain invincible in the market competition.This paper takes the finished product supplier as the research object, based on the management idea of JIT, taking the inventory cost control as the final goal, deeply analyzes the safe inventory and order batch problem based on JIT, and the key points that affect the inventory cost control.The main contents of this paper are as follows: firstly, on the basis of domestic and foreign research status and related theoretical research, the theoretical model is improved and improved by using literature query method and quantitative analysis method.On the one hand, on the basis of the traditional RQ) strategy, the security inventory is considered and analyzed, and the traditional RQ) strategy is combined with the security inventory model, which takes into account the change of demand and lead time.On the other hand, on the basis of the classical order batch model-basic EOQ model, the paper mainly studies the EOQ model of the normal distribution of demand and the EOQ model which takes account of the shortage factors.Through the analysis and research of these two models, the optimal solution of order batch is explored, and the inventory cost is controlled more effectively, and the economic benefit of supplier is improved.Then, taking the top three brands of a supplier's sales volume as an example, using quantitative analysis method and empirical research method, the optimal holding cost, optimal shortage cost, optimal order cost and optimal total cost of inventory in the improved model are calculated.And compare it with the inventory cost in actual operation.Finally, using qualitative analysis and quantitative analysis, the paper puts forward some suggestions on the main problems of inventory cost control for finished product suppliers.The conclusions are as follows: firstly, the safety inventory model under the JIT mode is improved and improved, and a new RQ) policy model with the introduction of the safe inventory quantity is formed. Secondly, the order batch model under the JIT mode is formed.That is, the EOQ model of normal distribution and the EOQ model considering the factors of shortage. Thirdly, in the empirical research, the optimal safe inventory, the optimal replenishment point and the optimal order quantity of the supplier are obtained.Through the comparison between the optimal inventory cost and the actual inventory cost, the conclusion that the optimal inventory cost is lower than the actual inventory cost is obtained. Fourthly, the relevant suggestions of inventory cost control based on JIT are obtained.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：F275.3;F276

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