The intensity of trade among countries belonging to the same region depends not only on the existence and effectiveness of a regional integration agreement, but also on other factors, which include the overall trade policy orientation and the relative level of geo-graphic and economic barriers...

The intensity of trade among countries belonging to the same region depends not only on the existence and effectiveness of a regional integration agreement, but also on other factors, which include the overall trade policy orientation and the relative level of geo-graphic and economic barriers...