Author Joe Studwell argues that rising population density in Sub-Saharan Africa is creating the necessary conditions for industrialization and economic growth.

In his book 'How Africa Works,' economist Joe Studwell argues that historically low population density, rather than just governance or corruption, has been a primary constraint on African development. As the region experiences rapid demographic growth and urbanization, experts suggest that reaching critical density thresholds is now enabling the infrastructure, market concentration, and specialization required for modern economic productivity.

The Impact of Density on Development

Historically, factors such as malaria and the tsetse fly limited population growth in Sub-Saharan Africa, resulting in thin soils and a lack of draft animals. This sparse population hindered the development of cities and made infrastructure investments economically unviable. Today, the region is the world's fastest-growing demographically, with projections suggesting a population of 2.2 billion by 2050. Increased density now allows for the division of labor and the creation of markets necessary for industrialization. With urban populations exceeding 500 million and set to double in 25 years, the continent is reaching density levels comparable to Asia's industrial take-off in 1960. However, analysts note that density is a necessary but not sufficient condition, as success also depends on effective policy and the development of productive smallholder agriculture.

Debating the Path to Industrialization

There is ongoing debate regarding whether African nations can follow the traditional manufacturing-led growth model used in East Asia. Some economists, such as Dani Rodrik, argue that global manufacturing has become too sophisticated for new entrants and that countries should focus on service-sector productivity. Conversely, others point to the continent's large import deficit and the potential of the African Continental Free Trade Area (AfCFTA) to supply a growing internal market of 1.4 billion people. Recent developments, such as the opening of a major oil refinery by Dangote Industries in 2024, highlight the potential for processing domestic resources rather than exporting them as raw materials. Additionally, the AfCFTA Secretariat recently signed a $3.2 billion contract to implement a customs system aimed at facilitating cross-border trade.