Efficiency in Brazilian Refineries Under Different DEA Technologies

被引:9
作者
Cavalheiro Francisco, Claudia Aparecida [1 ]
de Almeida, Mariana Rodrigues [2 ]
da Silva, Djalma Ribeiro [1 ]
机构
[1] Univ Fed Rio Grande do Norte, Petr Sci & Engn Post Grad Programme, Natal, RN, Brazil
[2] Univ Fed Rio Grande do Norte, Prod Engn Post Grad Programme, Natal, RN, Brazil
来源
INTERNATIONAL JOURNAL OF ENGINEERING BUSINESS MANAGEMENT | 2012年 / 4卷
关键词
environmental efficiency; data envelopment analysis; undesirable output; oil refinery;
D O I
10.5772/52799
中图分类号
F [经济];
学科分类号
02 ;
摘要
This paper aims to assess the environmental efficiency of refineries in the public sector with emphasis on generated effluents and water consumption in the production process. In order to conduct this research, the addressed method was quantitative with a qualitative approach to the environmental aspects of controllable and uncontrollable variables implemented in two classical models of Data Envelopment Analysis (DEA), considering only desirable outputs and two DEA models which include undesirable outputs. The sample consists of ten refineries considering the following as input variables: idleness percentage of the operating plant, the amount of water consumed; and the following as outputs: refinery production volume and generated effluents, desirable and undesirable, respectively, besides the uncontrollable variable, the refinery age. With the comparison result between the models, we observed the clear importance of the environmental variable for a more realistic analysis of the production process.
引用
收藏
页数:11
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