Author(s)

Li Long

Corresponding Author

Li Long

ABSTRACT

Based on the consideration of airline carbon emissions, this paper uses SBM-DEA model to measure the environmental efficiency of 12 representative airlines in China from 2014 to 2017, and uses the Malmquist-Luenberger index to decompose airline environmental efficiency. The study found that the average environmental efficiency of private airlines continues to be lower than that of state-owned airlines, and there is room for improvement in environmental efficiency. The decline in the technical efficiency of state-controlled airlines has led to a downward trend in environmental efficiency, and the improvement in the technical efficiency of private airlines has led to a steady increase in environmental efficiency. In addition, the technological progress of private airlines has been relatively stagnant, hindering the further improvement of its environmental efficiency.

KEYWORDS

Airline, environmental efficiency, SBM-DEA model, Malmquist-Luenberger index