Cost-efficiency in packaging waste management: The case of Belgium

In order to exploit economies of scale Belgian municipalities regularly cooperate in the provision of waste related services. In particular for the collection and separation of household packaging waste, municipalities appear to seek technical and cost efficiency gains by cooperating via municipal waste joint ventures. Although most Belgian municipal waste joint ventures can present excellent recycling and recovery rates for household packaging waste, their performance in terms of cost-efficiency has never been assessed. Using a unique dataset comprising of the costs for all 35 Belgian municipal waste joint ventures in 2010, this paper present the first assessment of the cost efficiency of household packaging waste collection in Belgium. As we are not sure on the relative importance of the separate cost efficiency scores for the three selectively collected household packaging waste fractions when determining the overall cost efficiency, this paper draws on the Benefit-of-the-Doubt approach. Our results indicate that, despite the substantial cooperation between municipalities, still considerable differences in cost efficiency for household packaging waste collection exist.     

Effectiveness of the policy of circular economy in China: A DEA-based analysis for the period of 11th five-year-plan

As a policy instrument for sustainable development, nationwide circular economy (CE) mode has been implemented for 7 years by the Chinese government, to overcome the dilemma among economic depression, energy shortage and environmental pollution. Unfortunately, few literatures contribute to checking the efficiency of regional CE and exploring the potential reasons in China, which will be practically helpful in guiding China's future development and providing reference for other developing countries that will adopt CE mode. Therefore, this paper puts forward the method of super-efficiency DEA window analysis to dynamically evaluate CE efficiency of 30 regions in China covering the period of 2005–2010. In line with the features of CE, the specific efficiency of three sub-systems, namely resource saving and pollutant reducing (RSPR) sub-system, waste reusing and resource recycling (WRRR) sub-system and pollution controlling and waste disposing (PCWD) sub-system, was assessed and compared regarding time series trend and spatial distribution, based on which, the comprehensive CE efficiency was totally ranked. The results show that, on the one hand, during the period of 2005–2010, Chinese CE efficiency slightly increased, implying a significant policy effect of CE; on the other hand, the efficiency of different sub-systems varies, with RSPR sub-system the lowest, and WRRR and PCWD sub-systems relatively higher. In terms of regional distribution, the efficiency of RSPR sub-system in the east area dominates during the whole period. However, for the other two sub-systems, from 2005 to 2007, the efficiency scores of the east fluctuate, then after 2007, the east area became more efficient than the central and the west areas. Throughout the study period, the RSPR sub-system in the central area stably maintains low efficiency, and so does the WRRR sub-system in the west area. The difference in regional efficiency of three sub-systems reflects the difficulty of carrying out CE policy in China comprehensively, which means that, promoting the adaptability of regional policy for local government and enhancing the coordination among various policies for China's central government are the key concerns for realizing sustainable development.     

基于DEA方法的浙江省市级环境效率评估研究

采用数据包络分析(DEA)方法对浙江省11个地市2005年-2011年的环境效率进行实证分析,同时使用tobit模型进行了环境效率与各类影响因子的回归分析.结果表明,2005年-2011年浙江省11个地市的环境效率在0.3~1范围内波动,波动幅度较大,环境效率优良的地市数量较少,且呈现总体数量下降趋势.浙中、浙南环境效率明显好于浙东北、浙西.随着环保投入产出效益的增加,浙东北、浙西环境效率一定程度提高.     

基于DEA分析的生命线网络节点抗灾相对可靠度评估

对于生命线工程网络系统而言,合理分析和评估其带有网络特征的节点可靠度,比只研究单体可靠度更具实际意义.基于数据包络分析法(Data Envelopment Analysis,DEA)有效性分析的思想,提出了生命线网络节点抗灾相对可靠度的概念.从生命线工程在灾害环境下着重体现出的系统性和网络性出发,考察网络中的节点所能实...     

基于DEA模型的国内各地区节能减排效率研究

运用数据包络分析（DEA）方法,从宏观角度将国内各地区作为开展节能减排成效评价的基本单位,从不同的角度对节能减排各项指标进行了分类,建立节能减排效率评价指标体系模型。并在此基础上综合分析了2007年全国31个省、市、自治区的能源、水资源利用效率以及废水、SO2综合治理绩效和效率。分析表明,中国能源、水资源的利用效率、废水、SO2治理和排放效率虽有普遍提高,但整体效率仍比较低,节能减排的潜力很大。     

基于DEA的江苏省环境效率研究

运用DEA方法中SBM模型对江苏省13个地级市2001～2007年间环境效率及其变化率进行分析.结果显示江苏省各地级市间环境效率差异明显,苏州、无锡、常州、盐城和宿迁5市处于前沿面上,其他市均是DEA非有效或弱有效.Mahnquist指数计算显示各地级市在研究期内变化率不大,但扬州市近年来环境效率持续降低.综合经济产出...     

Under the shadow of Asian Brown Clouds: Unbalanced regional productivities in China and environmental concerns

China has seen rapid economic growth over the past two decades, but severe environmental problems have accompanied this, such as the looming danger of Asian Brown Clouds. This paper analyzes the regional development of China by examining economic performance and environmental factors. Technical efficiency and productivity changes in 31 regions of China are computed for the period 1997–2001. In the case of regional GDP, the fast-developing eastern (coastal) regions experience higher technical efficiency and productivity growth than the inland central and western regions. When environmental factors are incorporated, the eastern regions still perform better than inland regions, both from static and dynamic analysis. This phenomenon is termed the 'double deterioration' of the inland areas in China. Double deterioration is attributed to the lack of economic resources to replace highly-polluting production equipment and technology in those less developed regions.     

中国煤炭企业安全效率及其影响因素分析

为准确评价中国煤炭企业安全效率,基于数据包络分析(DEA),对2009年中国煤炭企业100强中的30家企业的安全整体效率(TE)、纯技术效率(PTE)和规模效率(SE)进行实证分析;在此基础上,运用Tobit模型探讨影响煤炭企业安全TE的因素。研究结果显示,煤炭企业安全投入、整体科研能力与安全效率成正相关;厂商规模、劳动生产率与安全效率成显著正相关。基于此,从4个方面给出提高煤炭企业安全效率的建议。     

基于DEA的海外石油钻探项目HSE管理能力评价

基于课题组对大庆工程钻探公司349份有效问卷的样本数据,采用因子分析法对各指标进行筛选和验证;构建了海外石油钻探项目HSE管理能力评级指标体系和海外石油钻探项目HSE管理能力评价模型;采用DEA法分别对三个维度下不同地区的石油钻探项目HSE管理能力进行了分析,并运用DEA交叉法对不同项目的 HSE管理能力进行了比较分析。研究表明:海外石油钻探项目HSE管理能力中健康管理能力最强,环境管理能力最弱;海外不同国别的项目HSE管理能力差异明显。最后,提出了提升海外石油钻探项目HSE管理能力的对策建议。     

不同模式下农地整治前后土地利用效率的比较研究

论文在农户问卷调查数据的基础上,运用超效率DEA模型测算不同模式的农地整治项目区整治前后的土地利用效率以及同期未整治区土地利用效率,并采用双重差分计量模型研究了传统政府主导模式下农地整治项目区与未整治区土地利用效率的差异、农户主导模式与传统政府主导模式下农地整治项目区土地利用效率差异。研究结果表明:农地整治后,农户主导模式的农地整治项目区户均土地利用效率提高0.121 2,传统政府主导模式的农地整治项目区户均土地利用效率提高0.080 6,而同期未整治区户均土地利用效率提高0.040 1,反映出传统政府主导模式的农地整治可促进土地利用效率的提高,而农户主导模式的农地整治项目对土地利用效率的提升作用更大;农地整治对土地利用效率、农业总产值、灌溉资本投入影响显著,农户有效参与对土地利用效率、农业总产值影响显著;户主受教育程度、农业收入比例、旱涝保收耕地比例及承包地面积等对土地利用效率影响显著。据此,论文提出了相应的政策建议,为政府开展农地整治项目实施模式的创新提供决策参考。