The principle of airline substantial ownership and effective control is one of the biggest impediments to the air transport industry growth. Legitimately included in the bilateral agreements since 1946 for national security reasons, States have maintained the principle over the years and used it as a protectionist tool, as well as a bargaining chip. Today, considering that liberalization and globalization concepts are already well-established in the biggest industrial sectors, and a large number of cross-border investments occurs in most of the service sectors through mergers and...