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“双边际效应”的存在使得批发价契约不能协调供应链,进而形成供应链合作的动力。本文研究了这种合作动力是否会因价格需求函数种类的不同而形成差异的问题。通过构筑批发价契约下5种经典价格需求函数的二级供应链系统发现:虽然大多数情景下供应链效率在73.5%~86%,但价格需求函数的差异对供应链合作动力会造成显著差异。在特殊情况下,供应链效率可以趋于100%或0。由于协调成本的存在,所以区分价格需求函数种类,对供应链企业间合作方式的采取具有重要意义。
The existence of “double-sided effect” makes the wholesale price contract can not coordinate the supply chain, thus forming the driving force of supply chain cooperation. This paper studies whether this kind of cooperative motivation will be different due to the different types of price demand functions. Through the construction of the two-level supply chain system under the wholesale price contract, we find that although the supply chain efficiency is 73.5% ~ 86% in most scenarios, the difference in price demand function can cause significant differences in supply chain cooperation motivation . In special cases, supply chain efficiency can be 100% or zero. Due to the existence of coordination costs, it is of great significance to distinguish the types of price demand functions from those adopted by supply chain enterprises.