基于突发事件下的VMI供应链协调研究

发布时间：2018-05-25 01:39

本文选题：突发事件 + 供应商管理库存　；参考：《广东工业大学》2017年硕士论文

【摘要】：全球经济发展的加速,导致企业之间的竞争越来越白热化,并且竞争方式由单个企业之间的竞争转换成该企业所在的供应链之间的竞争,供应商管理库(VMI)在此种环境下应运而生。同时,由于世界经济发展的过快,也造成了突发事件发生的频率越来越高,因此,在突发事件影响下,VMI下的供应链协调问题该如何解决,成为众多企业和众多学者所关注的焦点。首先,分析了市场需求因突发事件发生改变时,VMI下供应链的协调问题。经研究,单独运用VMI模式的供应链不能达到协调,进而提出了剩余补贴契约,VMI下的供应链运用该契约后可以达到协调。在突发事件引起市场需求发生变化后,改进后的契约可以使突发事件后的供应链达到协调。同时研究表明,当市场需求在一定范围内变化时,最优供货量和最优批发价不需要改变;当市场需求变化超过一定范围时,最优供货量和最优批发价需要作相应的改变。其次,分析了当市场需求函数为乘积形式时,突发事件引起市场需求和生产成本同时变化对VMI下供应链的影响。经证明,剩余补贴契约仍然可以使供应链达到协调,并且改进后的该契约可以使突发事件后的供应链达到协调。同时研究表明,当市场需求和生产成本在小范围内变化时,最优供货量不需要改变,但是最优批发价会因为生产成本变化的影响,需要作出一定的改变。当市场需求和生产成本变化超过一定范围时,最优供货量和最优批发价都需要改变。另外,在市场需求和生产成本同时变化较大时,最优批发价格受生产成本变化的影响更大,最优供货量受市场需求变化的影响更大。最后,分析了突发事件造成市场需求和生产成本同时发生改变时,在零售商努力因素下的VMI供应链的协调情况。经证明,剩余补贴契约不能使该种情况下的供应链达到协调,进而提出了双向补贴契约,该契约可以使供应链达到协调。研究表明,当市场需求和生产成本在小范围内变化时,供应链的最优供货量和最优努力程度不用改变。当市场需求和生产成本变化超过一定范围时,供应链的最优供货量和最优努力程度都需要改变。同时研究还表明,当市场需求和生产成本变化到某一区域时,供应链的最优努力程度会有明显的突变现象发生。
[Abstract]:With the acceleration of global economic development, competition between enterprises is becoming more and more intense, and the mode of competition is changed from competition among individual enterprises to competition between the supply chains in which the enterprise is located. VMI (VMI) came into being in this environment. At the same time, because of the rapid development of the world economy, the frequency of unexpected events is becoming higher and higher. Therefore, how to solve the supply chain coordination problem under the influence of sudden events under the influence of VMI, Become the focus of attention of many enterprises and many scholars. Firstly, supply chain coordination under VMI is analyzed when market demand changes due to unexpected events. Through the research, the supply chain using VMI model alone can not achieve coordination, and then put forward that the supply chain under the residual subsidy contract can achieve coordination after the use of the contract. After the change of market demand caused by unexpected events, the improved contract can coordinate the supply chain after emergencies. At the same time, when the market demand changes within a certain range, the optimal supply volume and the optimal wholesale price do not need to change, and when the market demand changes beyond a certain range, the optimal supply volume and the optimal wholesale price need to be changed accordingly. Secondly, when the market demand function is the product form, the influence of the market demand and the production cost change on the supply chain under VMI is analyzed. It has been proved that the residual subsidy contract can still make the supply chain coordinate, and the improved contract can make the supply chain coordinate after the emergency. At the same time, the research shows that when the market demand and production cost change in a small range, the optimal quantity of supply does not need to change, but the optimal wholesale price will be affected by the change of production cost, so it needs to be changed to some extent. When market demand and production cost change beyond a certain range, the optimal supply quantity and optimal wholesale price need to be changed. In addition, when the market demand and production cost change greatly, the optimal wholesale price is more affected by the change of production cost, and the optimal supply quantity is more affected by the change of market demand. Finally, this paper analyzes the coordination of VMI supply chain under retailer effort when the market demand and production cost change simultaneously due to unexpected events. It has been proved that the residual subsidy contract can not coordinate the supply chain in this case, and then the two-way subsidy contract is put forward, which can make the supply chain coordinate. The research shows that when the market demand and production cost change in a small range, the optimal supply volume and optimal effort degree of the supply chain do not change. When the market demand and production cost change beyond a certain range, the optimal supply volume and optimal effort level of the supply chain need to be changed. At the same time, the research also shows that when the market demand and production cost change to a certain region, the optimal effort degree of supply chain will have obvious mutation phenomenon.
【学位授予单位】：广东工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：F274

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