期刊
JOURNAL OF AIR TRANSPORT MANAGEMENT
卷 44-45, 期 -, 页码 34-41出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jairtraman.2015.02.008
关键词
Energy efficiency; Airlines; VFB-DEA
资金
- National Nature Science Foundation of China [71403034, 71273037, 71320107006]
In this paper, the energy efficiency of airlines has been studied with number of employees, capital stock and tons of aviation kerosene as the inputs and Revenue Ton Kilometers, Revenue Passenger Kilometers, total business income and CO2 emissions decrease index as the outputs. A new model, Virtual Frontier Benevolent DEA Cross Efficiency model (VFB-DEA), is proposed to calculate the energy efficiencies of 11 airlines from 2008 to 2012. Spearman correlation coefficient is applied to validate the applicability of the new model. The results indicate that capital efficiency is an important factor in driving energy efficiency, and the American financial crisis had a significant influence on the change in energy efficiency during this period. (C) 2015 Elsevier Ltd. All rights reserved.
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