At the dawn of the new millennium, the European Union (EU) wanted to change profoundly its economic and commercial relationship with the countries of the Africa-
Caribbean-Pacific (ACP) with whom she had a privileged relationship. This relationship was hitherto based for a quarter of a century on a traditional vision support to the former British and French colonies through the opening non-reciprocal nature of the European market to products originating from these countries. This arrangement was gradually considered ineffective and not in accordance with the rules of the international trade. This led the EU to favor a new approach neo-liberal inspiration, nuanced by a certain consideration of the differences in between the EU and ACP countries. It has in fact acted, through the Economic Partnership (EPA), to put in place free trade agreements between
the EU and large ACP regions, de jure demanding a strong reciprocity with openness from 2008 ACP markets to products (goods and services) originating in the EU.
The OECS and IOC are two small regional integration and cooperation organizations, respectively, founded by small island ACP States to support them in their economic and social development efforts, and which have subsequently opened up to a certain degree of differentiated participation in French overseas territories in a context of evolving international and commercial relations.
In this article, we propose a comparative analysis of these two organizations and this participation, highlighting the common points, but also the important legal, political, socio-economic and financial differences.
The first part is devoted to the comparative analytical presentation of the two organizations, before going on to discuss in a second part the question of the participation of French Overseas Territories and its differentiated modalities. The conclusion provides an overall assessment of observed dynamics.