AN EMPIRICAL ASSESSMENT OF THE CO2-SENSITIVE PRODUCTIVITY OF EUROPEAN AIRLINES OVER THE PERIOD 2002-2010

摘要

Greenhouse gas emissions from aviation are expected to rise significantly due to thecontinuing increase in the number of commercial flights. The main objectives of thispaper are (1) to assess the amount of CO2 produced by major European carrier and (2)compare the CO_2-sensitive ???????????????????? productivity development for the period 2002-2010. We compute a sequential Malmquist-Luenberger productivity index in order toto measure efficiency change index and technical change index without bias. Ourresults show that European airlines exhibit a large variability in terms of CO_2 kg perASK. Furthermore;;we show that airlines included in our sample have been able torecover the fall in productivity to the pre-crisis value. Moreover;;we categorizeairlines into four groups according to their innovating and catching up abilities. Last;;we define out of 23 airlines four carriers (i.e.;;Lufthansa;;Ryanair;;Easyjet and VirginAirlines) that push the technology frontier outwards: we defined them as innovatorairlines.