The emission trading system (ETS) is being applied worldwide in different economic sectors as an environmental regulatory tool to induce reductions of CO2 emissions. In Europe the system has been applied since 2005 to energy intensive installations and, since January the 1st 2012, to airlines...

The main objective of this paper is to develop a model to determine the relative efficiency and quality of airports. This factor seems to have a strong effect on the airlines' choice of hubs. Previous studies of airport quality have used subjective passenger data whereas in this study airport...

Airport regulation regimes are under revision in many countries. The decision about the extent of airport regulation is based on an economic analysis of market power, which is done in two steps. The first step involves defining the relevant markets the airport is operating on. This in turn is...