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分工与协作的多元化使得供应链成员间的关系呈现出网络化的趋势。为更合理地设计供应链网络,基于投入与产出的视角,利用柯布-道格拉斯函数,分析在资源优化配置条件下供应链资源投入成本与产出数量间的基本关系,在此基础上构建不同市场结构下的供应链网络竞争模型,指出竞争网络规模和供应链个体差异对网络均衡的影响。认为供应链网络规模的增加将导致供应链个体和供应链网络整体利润水平的降低,供应链个体转化能力的差异化却能缓解网络规模增加的不利。通过数值算例分析,验证所得出的结论。
The diversification of division of labor and collaboration makes the relationship between supply chain members show a network trend. In order to design the supply chain network more reasonably, the paper uses the Cobb-Douglas function to analyze the basic relationship between the input cost and output quantity of supply chain in the condition of optimal resource allocation based on the perspective of input and output. Based on this, Supply chain network competition model under different market structures, pointing out the impact of competitive network size and individual differences of supply chain on network equilibrium. It is believed that the increase of the scale of supply chain network will lead to the decrease of overall profit level of supply chain individuals and supply chain networks and the differentiation of supply chain individual transformation ability will alleviate the disadvantage of increasing network scale. Through numerical example analysis, verify the conclusions drawn.