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Slacks-based data envelopment analysis for eco-efficiency assessment in the Australian construction industry

机译：基于松弛的数据包络分析，用于澳大利亚建筑业的生态效率评估

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摘要

Eco-efficiency as an important indicator for sustainability assessment can describe an integrated manner of economic growth, resource conservation and environmental protection. However, the current research could not correctly assess eco-efficiency and mostly utilize qualitative methods. This paper presents a new method called slacks-based Data Envelopment Analysis (DEA) to assess eco-efficiency based on directly and systematically dealing with the slacks of reducing resource consumption and minimizing environmental impacts, together with adding production value.Two DEA models are respectively, defined using inter-temporal and window benchmark techniques, so as to compare eco-efficiency results in temporal and spatial dimensions and then identify production benchmarks and gaps. Efficiency change and technological change, which are two driving forces for eco-efficiency change, are also investigated through a production-theoretical decomposition analysis. Data from the Australian construction industry from 1990 to 2013 are employed to specify the two DEA models. The research results illustrate that the construction industries in the Australian regions showed significant increases in eco-efficiency during the research period, but the gaps among them were increased due to the severe underperformance of technological change. This research primarily provides a innovative pathway for accurate eco-efficiency assessment and quantitative identification of reducing resource consumption, minimizing environmental impacts and adding production value. The developed research framework is generic and can assist worldwide construction projects, organizations and industries to measure, compare and assess eco-efficiency systematically.
机译：生态效率作为可持续发展评估的重要指标，可以描述经济增长，资源节约和环境保护的综合方式。但是，当前的研究无法正确地评估生态效率，并且大多使用定性方法。本文提出了一种基于松弛度的数据包络分析（DEA）的新方法，该方法基于直接和系统地处理减少资源消耗和最小化环境影响以及增加生产价值的松弛度来评估生态效率，分别有两个DEA模型。使用时间跨度和窗口基准技术定义，以便在时间和空间维度上比较生态效率结果，然后确定生产基准和差距。通过生产理论分解分析，研究了效率变化和技术变化，这是生态效率变化的两个驱动力。使用澳大利亚建筑业1990年至2013年的数据来指定这两种DEA模型。研究结果表明，在研究期间，澳大利亚地区的建筑业显示出生态效率的显着提高，但由于技术变革的严重表现不足，它们之间的差距增大了。这项研究主要为创新的途径提供了准确的生态效率评估和定量识别方法，以减少资源消耗，最大程度地减少环境影响和增加产值。已开发的研究框架是通用的，可以帮助全球的建筑项目，组织和行业系统地测量，比较和评估生态效率。

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