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Title: Efficiency in brazilian refineries under different DEA technologies
Authors: Francisco, Claudia Aparecida Cavalheiro
Almeida, Mariana Rodrigues de
Silva, Djalma Ribeiro da
Keywords: Environmental efficiency;Data envelopment analysis;Undesirable output;Oil refinery
Issue Date: 1-Jan-2012
Publisher: SAGE journals
Citation: FRANCISCO, Claudia Aparecida Cavalheiro; ALMEIDA, Mariana Rodrigues de; SILVA, Djalma Ribeiro da. Efficiency in brazilian refineries under different DEA technologies. Internacional Journal of Engineering Business Management, v.4, n. 35, p. 1-11, 2012. Disponível em: Acesso em:19 nov. 2019.
Portuguese Abstract: 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.
ISSN: 1847-9790
Appears in Collections:CT - DEP - Artigos publicados em periódicos

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