- WorldPopulationHighlights.pdf0.75 MB
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The populations of African cities are expected to grow by more than 900 million by 2050. Many of these people will live in secondary cities. These cities are a sub‑set of cities within national systems of cities. Secondary cities play a critical intermediary role in the operation and development of local and regional economies of national systems of cities and regions. They are a vital part of the fabric of the production, distribution, and logistics systems of national economies. →