Efficiency analysis of world cement industry in presence of undesirable output: Application of data envelopment analysis and directional distance function
Efficiency analysis of world cement industry in presence of undesirable output: Application of data envelopment analysis and directional distance function
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DOI：
10.1016/j.enpol.2012.01.030
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发表时间：
2012-05
期刊：
影响因子：
9
通讯作者：
R. Riccardi;G. Oggioni;R. Toninelli
中科院分区：
文献类型：
--
作者：
R. Riccardi;G. Oggioni;R. Toninelli
CO2emissions reduction and energy efficiency improvement are the targets of many environmental policies that aim at tackling climate change. The European Emission Trading is the best example of this engagement against climate change. Considering this framework, this paper studies the efficiency of the high energetic and CO2emissions intensive cement production process in 21 world countries. Alternative formulations of standard data envelopment analysis models and a directional distance function approach are compared in order to detect the efficiency of the cement sector both in presence and in absence of carbon emissions. We first analyze the entire cement production process and we then concentrate on the production of clinker, a by-product of cement, that is the main responsible of CO2emissions. Our results show that the inclusion or the exclusion of undesirable factors (CO2) influence efficiency levels as well as the investments in new technologies and the utilization of alternative fuels and raw materials in the cement and clinker production processes.
