Centre de documentation

At the international level.

Concentration économique	Agreement between two or more countries to abolish restrictions on the movement of capital and labour as well as trade restrictions among themselves. Marché commun	Monopole
Union douanière

Commentaire :

At the international level.

Regional integration

Coopération régionale
Cooperation for development in any economic, social or technical field at the supranational level.
Interdépendance
Mutual economic dependence among countries; for active efforts to promote closer economic ties, use "economic cooperation", "economic integration", etc.
Libre-échange