Non-radial Measures of Efficiency and their Applications in Data Envelopment Analysis

非径向效率度量及其在数据包络分析中的应用

• 批准号: 11680445
• 负责人: TONE Kaoru
• 金额: $ 2.11万
• 依托单位: National Graduate Institute for Policy Studies
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11680445/
• 关键词: DEA; Non-radial measure of efficiency; Super-efficiency; Adjusted projection; Site selection; Price-cap setting; 上限価格; 効率性; 非芯的効率性

I have completed five papers in this term of project. In the first paper, I demonstrated that the status of returns to scale in the BCC model is affected by adding weight restrictions and developed a new algorithm for identifying the RTS status. In the second paper, I discussed the issues of projection onto the frontiers in DEA.This task needs care when organizations with several different characteristics are involved. This paper discusses such situations and proposes a simple and practical method for coping with target setting in such mixed business environments. A method of "adjusted projection" is proposed which synthesizes a global view with local conditions. The third paper deals with the "super-efficiency" issue in DEA.I approached to this problem by using the slacks-based measure of efficiency (SBM) which I have proposed in my previous paper. This method differs from the traditional one based on the radial measure of efficiency, in that the former deals directly with slacks in inputs/outputs, while the latter does not take account of the existence of slacks. In the fourth paper, a national project of Japan, plans for the relocation of several government agencies out of Tokyo was discussed concentrating on the site selection problem. For this purpose, I proposed a consensus-making method for reaching a group decision, based on a combination of the AHP and the assurance region model of DEA.The last paper deals with the price-cap setting of NTT.Price-settings of public utilities are crucial societal matters. This paper describes how the cap was determined by referring to the cost efficiency model of DEA.

我在本学期完成了五篇论文。在第一篇论文中，我证明了 BCC 模型中规模收益的状态受到添加权重限制的影响，并开发了一种用于识别 RTS 状态的新算法。在第二篇论文中，我讨论了 DEA 中前沿的投影问题。当涉及具有多种不同特征的组织时，这项任务需要小心。本文讨论了此类情况，并提出了一种简单实用的方法来应对此类混合业务环境中的目标设定。提出了一种“调整投影”方法，将全局视图与局部条件相结合。第三篇论文讨论了 DEA 中的“超效率”问题。我通过使用我在上一篇论文中提出的基于松弛的效率度量（SBM）来解决这个问题。该方法与传统的基于效率径向测度的方法不同，前者直接处理投入/产出的松弛，而后者则没有考虑松弛的存在。第四篇论文是日本的一个国家项目，讨论了将多个政府机构迁出东京的计划，重点讨论了选址问题。为此，我提出了一种基于层次分析法和DEA保证域模型相结合的群体决策共识方法。最后一篇论文讨论了NTT的价格上限设定。公用事业的价格设定是至关重要的社会问题。本文参考DEA的成本效率模型，介绍了如何确定上限。

项目成果

K.Tone and Y.Takamura: "A comparative site evaluation study for relocating Japanese Government agencies out of Tokyo"Socio-Economic Planning Sciences. (2001)

K.Tone 和 Y.Takamura：“将日本政府机构迁出东京的比较场地评估研究”社会经济规划科学。

Cooper,Seiford,Tone: "Data Envelopment Analysis"Klumer Academic Publishers. 352 (1999)

Cooper，Seiford，Tone：《数据包络分析》Klumer 学术出版社。