Staple food price trends in South Africa: A case for buffer stocks?

The document examines food price volatility in South Africa, attributing it to climate change, global shocks, and corporate market concentration. It proposes a phased implementation of public buffer stocks—beginning with white maize and expanding to wheat and indigenous grains—to protect vulnerable households and support smallholder farmers. The authors suggest that such a system, if governed transparently and linked to agroecological practices, could eventually integrate into a regional SADC mechanism to strengthen food sovereignty across Southern Africa.

• South Africa has faced persistent food price volatility since 2020, with food inflation peaking at 15% in March 2023 compared to a general inflation peak of 7%. This disproportionately impacts the poorest households, where food expenditure represents a larger share of income.
• Food insecurity is worsening in South Africa, with nearly one in five households experiencing moderate-to-severe food insecurity and one in twelve suffering from severe food insecurity as of 2025.
• Analysis of bread, cooking oil, and maize meal prices indicates a decoupling between farm values and retail prices, suggesting that corporate pricing power and 'margin management' by processors and retailers drive consumer costs even when raw commodity prices fall.
• Agricultural production costs are heavily driven by volatile input prices; between July 2020 and July 2024, the price of Di-Ammonium Phosphate rose by 88% and Mono-ammonium Phosphate increased by 96%.
• Climate change is severely impacting yields; for example, the 2023-2024 white maize harvest saw a 29% reduction due to a harsh drought, with output falling to 6.007 million tonnes.
• The South African agro-food system is highly concentrated, with the top ten maize millers processing approximately 61% of locally produced white maize as of 2019/20, and five bakery groups producing nearly 80% of bread as of 2018-19.
• The document proposes a phased buffer stock system starting with white maize, then expanding to wheat and indigenous grains like sorghum and millet to improve nutritional diversity and climate resilience.
• To avoid conflicts with World Trade Organization (WTO) rules, the proposed system should ideally fall within the 'Green Box' by ensuring procurement occurs at current market prices and releases are tied to food security objectives.
• The authors recommend linking buffer stocks to agroecology by preferentially procuring from farmers using ecological methods to build long-term climate resilience.
• A national buffer stock system could be scaled into a regionally-governed mechanism under the Southern African Development Community (SADC) to coordinate emergency responses and share the cost of stockpiling.

APA

Bennie, A., Joala, R., Zwane, K., & Murphy, S. (2025). Staple food price trends in South Africa: A case for buffer stocks? Institute for Economic Justice. https://iej.org.za/wp-content/uploads/2025/09/IEJ-PB-FoodPricesBufferStocks2025-web.pdf

Chicago

Bennie, Andrew, Refiloe Joala, Kagiso Zwane, and Sophia Murphy. Staple food price trends in South Africa: A case for buffer stocks? Institute for Economic Justice, 2025. https://iej.org.za/wp-content/uploads/2025/09/IEJ-PB-FoodPricesBufferStocks2025-web.pdf.

Wikipedia

{{cite report |last1=Bennie |first1=Andrew |last2=Joala |first2=Refiloe |last3=Zwane |first3=Kagiso |last4=Murphy |first4=Sophia |title=Staple food price trends in South Africa: A case for buffer stocks? |publisher=Institute for Economic Justice |date=September 2025 |url=https://iej.org.za/wp-content/uploads/2025/09/IEJ-PB-FoodPricesBufferStocks2025-web.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{bennie2025staple, author = {Bennie, Andrew and Joala, Refiloe and Zwane, Kagiso and Murphy, Sophia}, title = {{Staple food price trends in South Africa: A case for buffer stocks?}}, institution = {Institute for Economic Justice}, year = {2025}, month = sep, url = {https://iej.org.za/wp-content/uploads/2025/09/IEJ-PB-FoodPricesBufferStocks2025-web.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }