  The exploration of existing commercial opportunities has been increasing the
share of commercial (non-aeronautical) revenues in the total revenues of
airports worldwide. These revenues, also called commercial, non-aeronautical,
or non-tariff revenues, come from rentals, duty-free shops, food and beverage
sales, parking, advertising, etc. In other words, everything that is not the
main business of the airport. Consequently, the dependence on commercial
revenues has also become increasingly important, and airport managers are
interested in understanding how to improve their financial results with this
new revenue source, as it not only improves financial outcomes but also
optimizes passengers' time and money consumption options at airports.
Therefore, this chapter seeks to discuss the main determinants of commercial
revenues at national airports, analyzing the possible impacts of the behavior
of passengers from low-cost carriers (LCC) on these revenues, combined with
other determining factors.
