How important are commercial revenues to today's airports?

This paper investigates the importance of commercial revenues to today's airports. It establishes that on average commercial revenues now account for about half of all revenues, although this varies considerably by region and individual airport, with retail being the most significant commercial source. It explores some of the key factors, such as consumer trends, security developments and political changes, which have led to a much more challenging time for commercial managers since the late-1990s. With growing pressure to control levels of aeronautical revenues, even greater focus on commercial revenues may be needed in the future and the paper concludes by discussing the implications of this.