World trade evolves at two margins. Where a bilateral trading relationship already exists it may increase through time (intensive margin). But trade may also increase if a trading bilateral relationship is newly established between countries that have not traded with each other in the past...

Regional integration is the strategy adopted at the continental level to strengthen Africa’s development. However, the different regional blocs already established on the continent face many challenges. Based on the economic integration of the ECOWAS (Economic Community of West African States)...