It is assumed and expected that establishing institutional mechanism among States which are not only trade-partners but have interdependent and even complementary economies would have a win-win affect. Such solidarity organizations are established in order to facilitate and foster trade relations and economic cooperation in between States that usually share common borders. As such organizations mostly reduce and even lift trade barriers, tariffs and other restrictions and thus increase trade volumes, they not only improve the welfare of the citizens of the member States but also foster the regional economy as a whole. Some regional organizations go even further and aim supranational economic, social and even political integration, as is the case for the EU which somehow constitutes a role-model for many regional organizations across the world.