Table I at the end of this paper attempts to portray the economic sources of the complexity of the West African sub-region by presenting indices of disparity by total population, its density per square kilometre, purchasing power density, and per capita income for fourteen West African countries. Datafor Guinea-Bissau, the fifteenth member of the prospective community, are not yet available. To these indicators of wide economic differentials should be added the different past colonial experiences, the existence of no less than ten mostly inconvertible currency zones, different external links and alliances, a by far higher rate of coups d'état than elsewhere in the world leading to the recurrent problems of political legitimacy, etc.… In spite of all these dysfunctional forces, the West African subregion has indeed had more than a fair share of attempts to form regional economic groupings in the past two decades. The purpose of the second part of this paper is to review in a systematic fashion the rationale behind such groupings. The complexity of the subregion has, of course, contributed to a high rate of failure of integration schemes. We contend that this is also due to the fact that in the West African sub-region, as in all developing countries for that matter, regional integration has been based on the principles of conventional theory of integration. This study would not attempt to develop a new theory, but would attempt in the next part of the paper to present the body of integration dynamics and practice in a new light, so as to highlight the reasons for the high rate of failure, and in the third and final part to recommend some grading principles which could contribute to a faster rate of integration among these economies. This last task will be tackled by developing in a summary fashion a postulational model of systems approach to regional integration in West Africa with particular reference to a new concept of exogenous socio-political... [ABSTRACT FROM AUTHOR]