Estimating regional coal resource efficiency in China using three-stage DEA and bootstrap DEA models

Based on three-stage data envelopment analysis(DEA) model estimates of resource utilization efficiency of coal,we selected 29 provinces from China's 2012 input-output data and used the bootstrap DEA model to correct the bias.The results show that the mean overall technical efficiency,pure technical efficiency,and scale efficiency was 0.833,0.998,and 0.711 in 2012,respectively.Moreover,the comprehensive technical efficiency score indicates that the scale is invalid.Area utilization efficiencies for the eastern,central,and western regions were 0.917,0.731,and 0.629,respectively.The results prove that there are significant differences in the distribution of coal resources utilization efficiency across regions.

Production Efficiency of Two-Oriented Agriculture Based on Three-Stage DEA Model

Two-oriented agriculture was a complex organism coupling production,economics,society and ecology.Its development process was affected by various factors such as producers,nature,society,etc.In order to overcome measurement error of traditional data envelopment analysis caused by ignoring random,three-stage DEA model was studied to remove environmental factors and random effects.On the foundation of this model was two-oriented agriculture comprehensive production efficiency of 14 cities were estimated in Hunan Province in 2008,and brown forth corresponding policy proposals to promote agricultural development.

An Analysis of Operational Efficiency of Agricultural Insurance Agency:Based on Three-Stage DEA Model

From the perspective of agricultural insurance agency,this paper focuses on the study of operational efficiency of agricultural insurance agency,and analyzes the operational efficiency of agricultural insurance agency and its influencing factors,in order to improve the operational efficiency of agricultural insurance agency,better supply agricultural insurance and achieve the policy effect of agricultural insurance.The results of this paper are as follows:( i) Either comprehensive operational efficiency or scale efficiency of Chinese-funded agency is higher than that of foreign-funded agency,but its pure technical efficiency is lower than that of foreign-funded agency,indicating that the managerial decision ability of Chinese-funded agency is weaker than that of foreign-funded agency,and needs to be improved;( ii) The operational efficiency of professional agricultural insurance agency is higher than that of comprehensive agricultural insurance agency,and the agricultural insurance agency is greatly affected by environmental factors;( iii) The operating time of agricultural insurance agency is proportional to its operational efficiency;( iv) The quality of employees is positively correlated with the capital and cost input difference,but negatively correlated with the difference in the number of employees. Therefore,it is necessary to pay attention to the improvement of employees' working efficiency while laying emphasis on employees' quality.

A Comparative Study on the Land Use Efficiency of Three Urban Agglomerations-Based on the Three-Stage DEA Model

This paper uses a three-stage DEA model to measure the land use efficiency of the three major urban agglomerations in the Yangtze River Delta,Beijing-Tianjin-Hebei,and the Pearl River Delta from 2007 to 2018.The following conclusions are drawn through research:first,the urban land use efficiency of the three major urban agglomerations in the Yangtze River Delta,Beijing-Tianjin-Hebei,and the Pearl River Delta all showed a downward trend,with the rates of decline being 6.06%,2.86%,and 24.34%respectively.In particular,the Pearl River Delta urban agglomeration had the largest decline.Second,the overall urban land use efficiency of the Beijing-Tianjin-Hebei urban agglomeration is relatively high,and the amount of redundancy is relatively small.The rate of decline is significantly lower than the urban land use efficiency of the two major urban agglomerations in the Yangtze River Delta and the Pearl River Delta.The land use efficiency of the Yangtze River Delta and Pearl River Delta urban agglomerations is in a state of continuous decline.Third,the proportion of cities with the effectiveness of returns to scale of urban land use efficiency in the three major urban agglomerations has decreased by 10.53%,10%,and 33.34%,respectively.The Pearl River Delta has the largest decline.Fourth,the land use efficiency of the Yangtze River Delta urban agglomeration is quite different.The central-peripheral phenomenon is evident for the Beijing-Tianjin-Hebei urban agglomerations and the Pearl River Delta urban agglomerations.

Measurement and Analysis of Agricultural Production Efficiency in Taiwan of China Based on Three-stage DEA Model

Agricultural production efficiency in Taiwan of China in 2015 is studied by using three-stage DEA model. The results show that total output value of agriculture,forestry,animal husbandry and fishery is taken as output index,while employees of agriculture,forestry,animal husbandry and fishery,number of tractors,investment in dry land and paddy field are taken as input indexes,which meets " isotropic" condition assumption of model application. Natural disaster,number of workers in agricultural production and marketing class,expenditure on farmland water conservancy are not favorable for the promotion of agricultural production efficiency,while multiple cropping index is favorable for promoting agricultural production efficiency. Three-stage DEA model effectively eliminates the influences of environmental and random factors on agricultural production efficiency. After environmental and random factors are eliminated,comprehensive technical efficiency in Taiwan of China declines because of the decline of pure technical efficiency. Each county and city of Taiwan could be divided into different types according to pure technical efficiency and scale efficiency,and it can have some emphasis in improving agricultural production efficiency according to their own efficiency characteristics.

Regional Energy Efficiency in China Based on a Three-Stage DEA Model

Energy is the material basis for social development and is closely related with the economy. Energy shortage, a low utilization rate of energy and the deterioration of the environment have become the main restrictions of economic development in China. Therefore, studying energy efifciency has a practical signiifcance for developing a harmonious and sustainable energy economy and building a conservation-minded and harmonious society. Here, based on the three-stage DEA model we analyzed the energy efifciency of 29 provinces in China in 2009, set up an evaluation index system of energy efifciency to compare differences in energy efifciency among regions and provide regions with theoretical guidance to adjust energy consumption strategy and improve energy efifciency. We divided technical efifciency into pure technical efifciency and scale efifciency, analyzed energy efifciency with its numerical value and added environment variables to perfect the results. We found that scale efficiency is overestimated before eliminating external factors and environment variables and pure technical efifciency is underestimated. To solve this problem, regions should expand the scale of the enterprises and pay more attention to energy efifciency. The scale returns of most provinces in the third stage are increasing （except Shandong province）, which shows that many enterprises are too smal to relfect the economy scale. Therefore, al regions except Shandong should increase their energy inputs to obtain the economy scale of energy utilization. From a regional perspective, eastern energy efifciency is highest and western is the lowest. Al regions should increase the size of enterprises to realize the scale economy. Central and western regions in China should strengthen mutual cooperation, bring into play their respective advantages, exploit new energy and new technology and improve the utilization ratio of energy.

基于DEA-Logit模型的新三板企业融资效率与退市研究

近年来发生的新三板企业退市问题已经引起了理论界和实务界的广泛关注。本文从融资效率角度出发,选取新三板退市企业和未退市企业组成研究样本,运用DEA和Logit模型实证检验融资效率对新三板企业退市的影响。研究发现,新三板退市企业融资效率在上市期间出现显著性下降,也显著低于未退市企业,融资效率水平下降是影响新三板企业退市的重要因素。研究结论可为新三板市场改革提供参考,也可为其他新兴资本市场提供借鉴。

数字政府背景下中国地方财政预算治理效率评价研究——基于DEA-Malmquist模型

随着数字政府的建设,财政领域充分运用现代信息技术手段,推动财政预算治理数字化转型。基于2017—2021年中国省级地方政府一般公共预算投入产出数据,运用DEA-Malmquist模型对各地方财政预算治理效率进行测度与对比分析。结果表明:中国地方财政预算治理效率总体向好,但有个别地方财政预算治理的DEA无效,起主导作用的是财政预算管理的技术进步与创新。因此,运用现代信息技术加快数字政府建设,提高预算管理数字化与信息化水平,有助于提升预算治理效率。此外,还需要因地制宜优化地方财政预算资金的规模与结构,加强地方财政预算法治建设。

基于三阶段DEA的我国公共服务效率评价

采用三阶段DEA方法,选取2012—2021年我国公共服务的相关数据,分析政治社会类、经济发展类和文化建设类公共服务的效率状况.研究表明,剔除环境和随机因素的影响后,2012—2021年我国公共服务供给效率总体呈现上升趋势,外部因素对我国公共服务效率存在显著影响,各个省域都发生了不同程度的变化,其中对政治社会类公共服务和西部地区的影响最大.同第一阶段DEA结果比较,第三阶段的结果更加符合实际情况.据此,未来我国公共服务的政策重点有三:一要强化制度保障,炼就有制可循的“定心丸”;二要盘活创新要素,激发发展活力的“催化剂”;三要健全评价体系,擦亮效率监督的“监控器”.

基于DEA模型的高校财力资源配置效率评价研究

文章从财务维度和管理会计工具平衡计分卡视角出发,以财力资源配置效率为主线,构建符合高校特点的财力资源配置和高校产出综合绩效评价指标体系,在此基础上通过数据包络分析方法(DEA)构建教育部直属高校财力资源配置效率评价模型进行实证研究,找出技术有效和规模有效的教育部直属高校,对不同经济区域教育部直属高校的财力资源配置效率进行评价分析,指出非DEA有效高校非有效的程度及投入规模是否恰当等,并提出了相关政策建议。

基于组合赋权-DEA的跨境铁路外部环境风险评价

研究目的:跨境铁路大多穿越不同国家,铁路沿线的自然、社会环境条件复杂多变,给跨境铁路外部环境安全带来巨大威胁。为保障跨境铁路平稳运行,采用组合赋权-DEA方法在全面识别跨境铁路沿线风险的基础上进行风险评价,旨在为跨境铁路风险管理工作提供借鉴。研究结论:(1)全面识别跨境铁路沿线外部环境风险,从自然环境与社会环境方面共选取30个风险指标构建跨境铁路外部环境风险评价指标体系,结合AHP-熵权法对各风险指标组合赋权;(2)应用基于DEA的风险评价方法,以各风险指标发生的概率和后果为变量,对跨境铁路外部环境风险进行评价和排序;(3)研究结果显示,跨境铁路侵限风险应予以重点关注,安保区内违法生产经营次之;(4)本文研究可为跨境铁路沿线外部环境安全管理工作提供新的思路,保障跨境铁路运输更加平稳高效运行。

基于超效率DEA的地铁初近远期编组方案比选研究

编组方案是实现不同时期地铁运营模式与客流特征相匹配的基础,也是直接影响地铁规划建设成本和低碳运营的关键问题。在综合分析影响地铁编组方案关键要素的基础上,构建了地铁初近远期编组方案比选的综合评价指标体系,以及编组方案比选的两步筛选法;通过分析各指标对地铁编组方案影响的差异性,提出基于超效率DEA的地铁初近远期编组方案评价比选模型,并在对指标体系进行约简合并的基础上,从投入和产出两个角度对指标体系进行划分;最后,以实例验证和分析了地铁初近远期编组方案评价比选模型的可行性和合理性。算例分析结果表明:(1)固定编组方案属于成本赋能型方案,需较高的设备设施成本和运营投入;而更改编组方案属于技术赋能型方案,通过提高管理和技术水平,实现了运能匹配和乘客时间满意度等方面的有效产出;(2)更改编组方案和固定编组方案之间的优劣具有一定的动态性,需结合具体的线路条件、城市或企业财政情况、运营管理和技术水平等条件进行综合判断。本文提出的地铁初近远期编组方案比选理论方法适用于多种实践场景,具有一定的实用性,可为地铁初近远期编组方案比选的规范化提供一定的理论参考。

基于DEA的绿色物流产业效能的评价

为评价双碳背景下的绿色物流产业效能并探索效能提升路径,采用DEA三阶段模型,以湖南省物流数据为研究样本,从科技角度选择创新发展指标,从三大产业与经济协调发展角度选取协调发展水平指标,从生态环境保护与减轻碳排放角度选取绿色发展指标,构建了绿色物流产业评价指标体系。评价结果表明:(1)湖南省的地级市之间绿色物流产业效能存在显著差异,环境因素对效能的影响较为明显,不同地级市之间的影响程度不同。(2)政府支持力度越大,投入冗余越少,越有利于绿色物流规模效益的形成;研发支出越多越有利于减少资源浪费,进而提高绿色物流产业效能。(3)DEA调整后由于技术性能的提升导致综合性能的变化,而技术性能又受外部环境和随机误差的影响。根据研究结果,从资源合理配置视角,提出湖南省绿色物流产业效能提升的路径。

基于两阶段DEA-SFA模型的科学数据平台资源提供者服务效率研究——以国家生态科学数据中心为例

服务绩效评价是衡量国家科学数据平台发展质量的重要指标,效率测算为其提供重要依据。将国家生态科学数据中心资源提供者的服务过程分为资源服务和知识转化前后相关联的两个阶段,从投入产出要素的使用效率、科学资源的利用程度和用户感知的服务质量3个维度构建指标体系,利用两阶段数据包络分析-随机前沿方法(DEA-SFA)模型对43个资源提供者进行服务效率测算,并运用超效率模型对有效DMU做进一步区分和排名。结果表明:国家生态科学数据中心资源提供者在资源服务和知识转化阶段平均纯技术效率值分别为0.794和0.838,DEA有效站点数分别为12个和16个;在43个决策单元中,优秀资源提供者约占16%,一般资源提供者约占70%,较差资源提供者约占14%;另外,资源提供者的服务效率和地区经济发展水平具有一定关联性,东部地区表现优于中西部地区。基于上述研究结果,进而提出推动我国国家科学数据平台发展建设的相关对策建议。

我国养老机构服务效率测度及提升路径研究——基于三阶段DEA和Malmquist指数的实证分析

科学评估养老机构服务效率是优化养老资源配置和完善养老服务体系建设的基础。以我国29个省(区、市)为研究对象,基于2018—2022年《中国民政统计年鉴》和《中国统计年鉴》的数据,运用三阶段DEA模型和Malmquist指数模型,对养老机构服务的静态与动态效率测度进行分析。研究表明,养老机构服务效率逐年提升,但仍有改善空间。综合技术效率均值由0.794下降到0.726,受到外部环境因素的影响;技术进步是制约养老机构服务效率的主要原因。因此,要调整投入生产规模,重视环境因素影响,实施差异化的效率提升策略,以技术进步为发展重心,进而提高养老机构服务效率。

基于DEA方法的科技企业孵化器绩效评价与对策研究——以安徽省为例

[目的/意义]对科技企业孵化器开展绩效评价,不仅有助于提高孵化器自身运营管理水平,而且对政府部门制定有针对性的政策,引导孵化器健康发展也具有重要意义。[方法/过程]采用DEA方法将科技企业孵化器投入的人力、物力、财力等资源作为投入变量,将经济、孵化、社会等效益作为产出变量构建绩效评价指标体系,选用2019―2022年安徽省科技企业孵化器的相关统计数据,对全省16个地市的科技企业孵化器的综合技术效率、纯技术效率与规模效率进行了实证分析。[局限]DEA方法对投入产出指标的数量有限制,在后续研究中需要进一步凝练牵动性指标。[结果/结论]研究发现,安徽省大部分地市科技企业孵化器处于DEA有效状态,但蚌埠、阜阳、黄山等部分市还未实现最佳投入产出效益。基于研究结论,结合实地调研,提出了科技企业孵化器未来发展的对策建议。

基于三阶段DEA模型的专精特新“小巨人”企业创新效率评价

运用三阶段数据包络分析法(DEA),考虑外部环境因素和随机误差的影响,采用规模报酬可变的假设,选用DEA-BCC(banker-charnes-cooper)作为计算模型,对我国196家专精特新“小巨人”A股上市企业进行创新效率评价。研究发现,目前大部分企业创新效率较低,处于创新滞后型,但不同类型企业间表现出明显的差异;政府补助、产业集中度以及企业年龄等因素均会对专精特新“小巨人”企业的创新效率产生显著影响。为进一步提升专精特新企业的创新效率和创新能力,建议政府合理配置相应补助,积极培育创新链和产业链,打造产业创新聚集地;企业不断优化研发、人力等资源,完善创新生态系统。

基于DEA-Malmquist指数的我国中部地区物流效率分析

以2012—2021年我国中部地区(山西、河南、安徽、湖北、江西、湖南)六省的物流行业相关面板数据为对象构建评价指标体系,运用DEA-Malmquist指数模型,分别对其进行静态分析以及动态分析,进而得出相关结论,并由此给出提高物流效率的可行性建议。结果表明:2012—2021年间中部地区的物流效率一直未达到有效,且技术是中部各省物流效率的主要问题,同时生产率也略微退步,针对这些问题,中部地区需要加强区域协同作用以及推动物流技术的进步,也需要探索创新人才培养制度,吸引高技术人才。

基于DEA模型的安康市农业投入产出效率评价

为了解安康市现代农业发展效率状况,选取2009—2020年安康市污染治理投资总额、农业固定资产投资额、耕地面积和乡村劳动力资源总数4个农业投入指标,以及农业总产值和农业人均生产值2个农业产出指标,采用数据包络分析(data envelopment analysis,DEA)模型中的BCC模型进行效率分析。结果表明,安康市农业投入产出效率只有2020年的DEA模型是有效的,但从2009年开始,综合效率总体呈现上升趋势;从投入冗余率与产出不足率可以看出,安康市农业总产值基本不存在产出不足的现象,除2020年外,其余各年份在污染治理投资总额、农业固定资产投资额、耕地面积和乡村劳动力资源总数的投入在不同程度都存在冗余,投入结构不合理造成DEA模型无效。

基于共享投入两阶段DEA模型的通信企业标准化效率

从通信产业技术标准研发投入和标准化经营成果产出的视角,提出通信企业标准化效率评价指标体系,并构建可变规模报酬下的两阶段数据包络分析模型来测度通信企业技术标准研发效率和标准化成果转化效率。以华为和中兴两家企业2010—2020年的投入产出数据进行实证分析,结果表明,两家公司技术标准化整体效率较高,子阶段个别年份效率低下;在技术标准研发阶段,华为的效率平均值低于中兴的效率平均值;在标准转化阶段,华为的效率平均值高于中兴的效率平均值。最后,根据研究结果提出优化资源投入及利用效率、加入标准化联盟及组织和参与标准化活动等多条标准化效率提升建议。