The evolution of relations between Ethiopia and Djibouti challenges one of the most persistent assumptions in African regional integration: that integration proceeds through a linear sequence of institutional stages designed and managed from above by regional organizations. Classical integration theory imagines a gradual progression from free trade areas to customs unions, common markets, and ultimately political union. Yet the African experience increasingly reveals a different reality. Regional integration advances as governments address concrete operational challenges and respond to growing functional interdependencies, rather than through ideological convergence toward predetermined models of integration. In this perspective, integration is not imposed from above according to a predefined institutional blueprint. Instead, it emerges through adaptive interactions and incremental institutional adjustments driven by practical needs such as developing transport corridors, incresing connectivity, encoraging cross-border economic activity, or securing reliable access to the sea, as illustrated by the Ethiopia–Djibouti case.

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For decades, the Global South was judged against a model of stability it never enjoyed. Today, as uncertainty becomes the norm rather than the exception, its experience reveals a different lesson: trade success depends not only on efficiency under equilibrium, but on the capacity to adapt under permanent change. For the first time, Northern economies may have as much to learn from the South as the South once had to learn from them. The concept of "trade system plasticity" offers a powerful lens through which to understand this shift. On Latinoamérica21.