Phosphorus is a key element in food production, but is a non-renewable resource. Recent estimates suggest that global production of P fertilizers will peak in 2033 and will be one third of that peak level by the end of the 21st century. Population and income growth will increase demand for food,...

This paper uses cross-country panel data to estimate the agronomic inputs that lead to cereal yield improvements and the consequences for developing countries' processes of structural change. The results suggest a clear role for fertilizer, modern seeds and water in boosting yields. It then...