DEA window analysis for environmental assessment in a dynamic time shift: Performance assessment of U.S. coal-fired power plants
DEA window analysis for environmental assessment in a dynamic time shift: Performance assessment of U.S. coal-fired power plants
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DOI：
10.1016/j.eneco.2013.09.020
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发表时间：
2013-11
期刊：
影响因子：
12.8
通讯作者：
T. Sueyoshi;M. Goto;Manabu Sugiyama
中科院分区：
文献类型：
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作者：
T. Sueyoshi;M. Goto;Manabu Sugiyama
本研究讨论了在时间范围内DEA环境评价的窗口分析的新用途，其中DEA代表数据包络分析。有关环境保护的数据集通常是按时间序列构成的。在将数据分析应用于环境评价时，我们有必要研究不同时期之间的前沿转移，因为它表明了在理想产出和不理想产出方面的技术进步。该方法的一个重要特征是将自然可处置性和管理可处置性的概念纳入DEA的计算框架，并在时间范围内扩展这两个可处置性概念。为了捕捉前沿转移，本文提出了一种新的环境评价DEA窗口分析方法。本研究将提议的DEA窗口分析应用于1995-2007年间美国燃煤电厂的数据集。应用发现，在《清洁空气法》（Clean Air Act， CAA）下，燃煤电厂逐渐重视环境保护。因此，从1996年到2007年，他们在管理上的表现有所提高。这表明了CAA和工业污染监管的重要性。因此，美国有必要扩大CAA的范围来控制二氧化碳的排放量，因为目前的监管对我们现代社会全球变暖和气候变化的来源具有有限的政策影响。
This study discusses a new use of window analysis for DEA environmental assessment in a time horizon where DEA stands for Data Envelopment Analysis. The data sets on environmental protection are often structured by time series. In applying DEA to environmental assessment, it is necessary for us to examine a frontier shift between different periods because it indicates a technology progress on desirable and undesirable outputs. An important feature of the proposed approach is that it incorporates the concept of natural and managerial disposability into the computational framework of DEA and extends the two disposability concepts in a time horizon. To capture the frontier shift, this study proposes a new type of DEA window analysis for environmental assessment. This study applies the proposed DEA window analysis to a data set on U.S. coal-fired power plants during 1995–2007. The application finds that the coal-fired power plants have gradually paid attention to environmental protections under Clean Air Act (CAA). Consequently, their performance under managerial disposability has increased from 1996 to 2007. This indicates the importance of CAA and regulation on industrial pollutions. Thus, it is necessary for the United States to extend the scope of CAA for controlling the amount of CO2emission because current regulation has a limited policy influence on the source of global warming and climate change in our modern society.