ABSTRACT
Much research has been done in the past few years in order to understand and optimize the regulatory framework of airport markets. 1 There are a multitude of approaches to this regulatory framework – sometimes complementary, mostly, however, competing. Economists generally agree that airport regulation of some sort is necessary if one can identify persistent market power within the relevant market. To date, much less emphasis has been placed on the problem of measuring an airport's market power. This is especially true for the German airport market, where much research is still needed.
