Is African agriculture repeating Asia's mistakes instead of learning from its successes?
Core argument: Sub-Saharan African cereal production grew 5x since the 1960s, but stagnant yields 2020–2024 reveal productivity gains have plateaued, limiting further.
In aggregate [sub-Saharan Africa's] farmers are growing more cereals, such as maize (corn) and rice, than ever: nearly five times as much as in the 1960s. But most of those gains came from cultivating more land, which cannot go on for ever. The amount of arable land per person has been falling for decades, and now sits at roughly the global average. That might not matter if farmers were also growing more crops per hectare. But recently gentle growth in agricultural productivity has given way to stagnation, perhaps even decline. Consider figures drawn from national statistics in Africa by the Food and Agriculture Organisation. Cereal yields did not grow between 2020 and 2024, the latest data point. Nor did total factor productivity (TFP), a measure of how efficiently inputs of all kinds (such as labour and machinery) are turned into produce. Most African countries had lower agricultural TFP in 2023 than a decade before.

