Boeing and Airbus: Duopoly in Jeopardy?

For decades, Boeing and Airbus have struggled for dominance in the large commercial aircraft market. In 2010 and 2011, the World Trade Organization ruled that each firm has received illegal subsidies from the governments of the United States and the European Union, which have enhanced their competitive positions. This paper considers the nature of these rulings and the future competitive environment in the global jetliner industry