Starting from the hypothesis that the concept of “degrowth economics” could be considered as an alternative to the hegemonic development model derived from the capitalist system, this thesis starts by a critical analysis of the international development aid system and follows on to analyzing what the concept “degrowth economics” would mean (or what would the proposals) for the international aid system in Sub-Saharan Africa. This analysis presents evidence of the theoretical and practical limitations of the orthodox aid models, which have been designed to solve underdevelopment. From the degrowth economics perspective, a systemic reformulation of the international cooperation is proposed which entails a Structural Adjustment in the North, leading to a redress in the North-South imbalance and social and ecological sustainability worldwide.