Abstract
Each country tries to realize a comparative advantage in a sector and also to have the benefit of producing goods.
In the past, at the earliest of capitalism, Ricardo explained this comparative advantage with two main factors, the natural resources and the labor force.
Nowadays, in a world economy, other factors are also needed to get a comparative advantage.
Also, Porter (1990) developed a new model of this comparative advantage called ‘Porter's diamond' which describes an interconnected system of four major determinants: Factor conditions, Demand conditions, Related and Supported industries and Firms strategy, structure and rivalry.
Two other factors are the government and the chance.
We are now adapting this model for the aerospace sector in France to determinate the French comparative advantage in this sector.
As the aerospace industry is a very large sector, it is appropriate to restrict our research on civil aircrafts because this market is the most dynamic and the military sector depends on the government, a secondary factor in Porter's theory.
