标题： 两级情况下的价格为无政府状态的改进和发展上界 显示英文标题

标题： Improved and Developed Upper Bound of Price of Anarchy in Two Echelon Case

摘要： 价格为无政府主义状态，即效率损失的性能比值，在单周期报童问题中利用众所周知的新svendor问题来讨论分布式供应链管理与集成供应链管理之间的效率损失。特别是处理了一些显著的分布式策略，在之前的工作中已经研究了每种情况下的性能比值，并从理论上进行了分析，提出了更紧的价格为无政府主义状态的上界和下界。此外，我们的方法基于一个广义框架，并通过凸优化文献中的几何解释显现出了价格为无政府主义状态。 显示英文摘要

摘要： Price of anarchy, the performance ratio, which could characterize the loss of efficiency of the distributed supply chain management compared with the integrated supply chain management is discussed by utilizing newsvendor problem in single period which is well-known. In particular, some of remarkable distributed policies are handled, the performance ratios in each case which have been investigated in the previous works are analyzed theoretically and the tighter upper bound of price of anarchy and the lower bound are presented. Furthermore our approach is developed based on a generalized framework and a geometric interpretation of price of anarchy is appeared via the literature of convex optimization.