FDH Directional Distance Functions with an Application to European Commercial Banks

Weextend Free Disposable Hull (FDH) efficiency analysis towardsthe general directional distance function framework. The profitinterpretation of directional distance functions is extendedto the non-convex FDH technologies. In addition, we derive anefficient enumerative algorithm for computing distance measuresin Free Disposable Hull (FDH) technologies, which applies tothe entire (infinitely large) family of directional distancefunctions. A simple numerical example and an application to Europeancommercial banks illustrate the algorithm.     

The Application of Mathematical Programming Approaches to Estimating Container Port Production Efficiency

Container terminal production is both an important and complicated element in the contemporary global economy. This paper aims to evaluate the efficiency of the world’s most important container ports and terminals using the two alternative techniques of Data Envelopment Analysis (DEA) and the Free Disposal Hull (FDH) model. The results give an insight into the current efficiency ranking of the world’s major container ports and terminals. They also confirm expectations that the available mathematical programming methodologies lead to different results and that appropriate variable definition of input and output factors is a crucial element in meaningful applications of DEA and FDH. It is also concluded that the availability of panel data, rather than cross-sectional data would greatly improve the validity of the efficiency estimates derived from all the mathematical programming techniques applied.JEL Classification:C61, D24, E23, L23, L25, L92     

Some Remarks on Productivity and its Decompositions

This paper provides a brief history of the Malmquist productivity index and its decomposition. Theoretical and empirical issues related to the index are discussed along with directions for future research.     

基于DEA的区域环保投入效率分析

运用数据包络分析(DEA)方法,建立环保投入效率评价指标体系模型,并在此基础上分别分析了全国28个省市自治区2009年的废水、废气及环境污染综合治理投入效率。研究表明,我国区域环境污染综合治理的整体水平比较高,但是废气的处理效率除了几个地区效率较高之外,其他地区效率都非常低,废气处理效率仍然需要提上日程。     

Dynamically evaluating the comprehensive efficiency of technological innovation and low-carbon economy in China's industrial sectors

Technological innovation and low-carbon economy are significant for the high-quality development of China's industrial sectors. However, few scholars combine the two stages closely and discuss their coordinated development. This paper establishes an evaluation index system of technological innovation and low-carbon economy in China's industrial sectors. The technological innovation efficiency, low-carbon economy efficiency, and comprehensive efficiency of technological innovation and low-carbon economy are dynamically investigated by the two-stage data envelopment analysis (DEA) model and the DEA window analysis with 35 subsectors panel data during 1996–2018. The inter-industrial differences in the technological innovation efficiency and low-carbon economy efficiency are considered, and the influencing factors of the comprehensive efficiency of technological innovation and low-carbon economy are studied by the bootstrap truncation regression. The results show that: (1) The development of the technological innovation and low-carbon economy is uncoordinated, and the low-carbon economy efficiency needs improvement; (2) There is heterogeneous of the technological innovation efficiency and low-carbon economy efficiency in the 35 subsectors; (3) The density of science and technology institutions, and the average enterprises scale are positive to the comprehensive efficiency of technological innovation and low-carbon economy, while excessive reliance on technology introduction has a negative impaction. The corresponding suggestions are provided for promoting technological innovation efficiency and low-carbon economy efficiency of industrial sectors.     

基于三阶段DEA模型的中国出版印刷业效率评价北大核心

采用省域面板数据,运用三阶段DEA模型对中国31个省市区(港澳台除外)出版印刷业的投入产出效率进行评价。研究发现:文化产业的发展能够提高出版印刷业的资产利用效率,降低资本投入冗余;中国出版印刷业的综合技术效率值不高,但呈现逐年增长的趋势,同时存在着明显的省际差异,西部地区与中东部地区的差异巨大,主要表现为规模效率的差异;出版印刷业的纯技术效率较高、规模效率偏低,企业规模弱小与行业规模不足成为制约出版印刷业投入产出效率的主要因素。为实现中国出版印刷业的高质量发展,应充分利用有利的外部因素,挖掘效率潜力;扩大印刷出版企业规模,提升行业规模效益;考虑效率区域差异,采取有针对性的策略。     

A cautionary note on methods of comparing programmatic efficiency between two or more groups of DMUs in data envelopment analysis

In some applications of data envelopment analysis (DEA) there may be doubt as to whether all the DMUs form a single group with a common efficiency distribution. The Mann–Whitney rank statistic has been used to evaluate if two groups of DMUs come from a common efficiency distribution under the assumption of them sharing a common frontier and to test if the two groups have a common frontier. These procedures have subsequently been extended using the Kruskal–Wallis rank statistic to consider more than two groups. This technical note identifies problems with the second of these applications of both the Mann–Whitney and Kruskal–Wallis rank statistics. It also considers possible alternative methods of testing if groups have a common frontier, and the difficulties of disaggregating managerial and programmatic efficiency within a non-parametric framework.      

基于DEA的机械制造业上市公司生产经营效率评价

文章建立评价东部地区25家机械制造行业上市公司生产经营效率的数据包络分析模型,测算了各上市公司的总体效率、技术效率、规模效率及其规模效益状况;分析了各类机械制造业上市公司在投入、产出及资源配置效率等方面的特点,进而提出促进机械制造业高效发展的若干建议。     

基于DEA的机械制造业上市公司生产经营效率评价

文章建立评价东部地区25家机械制造行业上市公司生产经营效率的数据包络分析模型,测算了各上市公司的总体效率、技术效率、规模效率及其规模效益状况;分析了各类机械制造业上市公司在投入、产出及资源配置效率等方面的特点,进而提出促进机械制造业高效发展的若干建议。     

基于GDP水平的区域技术创新效率测度

区域技术创新效率是区域发展的动力,是衡量区域技术创新运营机制有效程度的重要标准,反应一个地区的研发水平和投入资源的利用率。通过建立区域技术创新效率指标体系,根据2009年我国30个省、市、自治区人均GDP构造系数矩阵,确定区域间的竞合关系;应用带有系数矩阵的交叉效率模型对2009年我国30个省、市、自治区的技术创新效率进行测度得出交叉效率矩阵,最后应用熵值法确定权重并得出最终效率。实证结果表明全部30个地区的技术创新效率均具有提升空间,该方法可以对所有区域进行充分排序且与传统仁慈型和进取型交叉效率方法相比更符合实际情况。     

基于DEA方法的湖南农业生产效益评价指标体系研究

本文通过DEA方法构建投入与产出模型,并根据可靠数据进行运算,试图对现阶段湖南农业生产效益进行综合评价。对比求解的结果找出湖南农业发展存在的问题并给出针对性建议。     

Measuring the performance of Internet companies using a two-stage data envelopment analysis model

In exploring the business operation of Internet companies, few researchers have used data envelopment analysis (DEA) to evaluate their performance. Since the Internet companies have a two-stage production process: marketability and profitability, this study employs a relational two-stage DEA model to assess the efficiency of the 40 dot com firms. The results show that our model performs better in measuring efficiency, and is able to discriminate the causes of inefficiency, thus helping business management to be more effective through providing more guidance to business performance improvement.     

Some rank tests for one–sided many–one comparisons

We compare some nonparametric tests for the (/+ 1)–sample problem with additive effects under the constraint that in every sample the treatment effect is not less than that in the first sample, i.e. of some control. The behavior of the Pitman efficiency of the respective tests (essentially tests of a Kruskal–Wallis–, Wilcoxon–, Fligner–Wolfe–, Steel–, and Nemenyi–type) is discussed which turns out to depend on the level and power of the tests as well as on the directions, from which the alternative tends to the hypothesis. It will be shown that none of the tests under consideration is uniformly superior to the others.     

基于超效率SBM模型的中国区域全要素能源效率评价

建立了基于DEA模型的全要素能源效率评价指标体系,运用考虑非期望产出的超效率SBM模型,对我国30个省(直辖市、自治区)2007—2016年的能源效率进行了测度,将测度结果按照东部、中部、西部三个区域进行了时空差异分析,并对各区域的全要素能源效率变化趋势进行收敛性检验。结果显示:2007—2016年我国全要素能源效率整体呈现下降趋势,从三个区域的对比研究可以看出,我国区域能源效率存在明显差异,具体表现为东部能源效率最高、中部次之、西部最差,与我国区域经济发展水平的梯度相一致。通过收敛性检验可以看出2007—2016年,我国全要素能源效率呈发散趋势,即地区之间的差距在逐渐增大。     

我国科技投入效率的省际比较分析

文章运用DEA方法,对我国31个省市科技产出的截面数据进行了实证分析,针对经典DEA模型存在的缺陷,采用四阶段DEA结合Tobit回归的方法,剔除了外生环境变量的影响,衡量和评价了各地区的科技投入效率。结果表明:环境因素对科技投入效率影响显著,经典DEA方法得出的科技投入效率被明显高估;排除环境变量后,绝大部分省市的规模无效率是由于科技投入不足造成的。     

保定市新农村建设成效评价

本文从农民增收,农业增效和农产品增竞争力三个角度对保定市近年来新农村建设取得的成效进行了评价,并提出了建设中仍存在的问题。     

基于DEA模型的企业员工绩效考评研究

利用数据包络分析(DEA)方法对企业员工进行绩效考评,目的是真实、客观地反映员工的工作表现。本文提出运用只有输出(输入)和二次相对有效性的DEA模型对企业员工进行静态与动态的绩效考评,并结合实例进行实证研究,为人力资源管理提供了有价值的方法。     

经济发展水平与科普资源投入产出效率的关系研究 ——基于三阶段DEA模型

双循环新发展格局对我国创新提出了更高的要求.创新发展一方面需要科技创新,另一方面也少不了科学普及,中央强调科学普及与科技创新同等地位.基于三阶段DEA模型,对2008—2015年31个省市、自治区科普投入产出效率进行研究,按照经济发展情况把全国划分为三个区域.研究发现:我国科普投入产出技术效率的上升和规模效率的波动影响...     

城市群技术创新与经济增长效率的时空分异研究——以成都城市群为例

城市群区域协同发展格局对城市群整体创新绩效有着较为深刻的影响。本文基于协同共生的视角,以两阶段网络DEA为分析方法,以成都城市群为例,对城市群技术创新与经济增长两阶段动态效率进行实证分析,发现城市群技术创新与经济增长两阶段效率值的时空分异特征明显。时间上:在虹吸效应与涓滴效应的交互作用下,中心城市与成员城市的效率差呈现先扩大后缩小的趋势;空间上:呈现南北高,东西低的态势,并符合地理邻近、技术邻近以及制度邻近的发展规律。研究发现,经济增长产出阶段是创新效率提升的瓶颈,鉴于此,未来城市群发展需着力于政策协同、资源协同、空间协同,提高创新一体化程度,从而形成区域创新的整体规模效应。     

基于DEA方法的农村信用社服务“三农”效率分析——以陕西省农村信用社为例

从陕西省涉农地区农村信用社服务"三农"的深度、广度及服务"三农"的正外部性入手,使用DEA方法评价陕西省涉农地区农村信用社服务"三农"效率,并从股权结构、法人治理两个方面分析了影响陕西省农村信用社服务"三农"效率的主要因素。认为陕西省涉农地区大部分信用社在为"三农"服务方面的纯技术效率相对较好,规模效率较差。