Determinação da eficiência ambiental relativa no setor de aviação comercial : uma abordagem DEA

Abstract

The Environmental initiatives in the aero transportation have been the topic of international debates. The maximum efficiency of the natural resources have to be achieved, and at the same time, there must have profits with minimum pollutants emission. That means being ecoefficient. So, the purpose of this work is to determine the environmental technical efficiency of the Brazilian airlines. The used methodology was Data Envelopment Analysis (DEA), based on the CCR model and input orientation. The variables used as inputs in the study are: fleet, number of flight cabin crew, number of ground staff and fuel consumption in liters. As products are used passengers transported paid times kilometer, paid tons times kilometer and is used as negative product the hours on ground. Two models were suggested for data analysis: the passengers transport and the cargo. It was possible to identify the relative efficiency of each organization and, after that, to identify the input improvement percentage of the inefficient units, when the goal is that they project themselves on the efficiency frontier. From the DEA application and based on the fuel liter consumption, it was estimated, beyond the total quantity of CO2 emissions from the companies, how much it is possible to minimize them relatively to the efficient units. Therefore, it was concluded that, among the companies that transport passengers, the most efficient are the ones that have longer flights and have more market share. In relation to those companies which provide cargo service, the ones that are efficient are Absa and Master Top. Regarding to CO2 emissions, the estimated quantity related to the companies’ flight activities in 2010 is 10.991 GgCO2. The cargo companies are responsible for 365,70 GgCO2, whereas the passengers transport companies are responsible for 10.625,62 GgCO2. It is possible to reduce 226 GgCO2, that represents a reduction of 2.05% from the companies’ total emissions. For the cargo transport, it is possible to minimize 60,62 GgCO2, representing a reduction of 0,55% from the companies’ total emissions.