Food prices are climbing across nearly every region of the world, and while climate extremes and weather-driven production disruptions are part of the story, a deeper structural issue is emerging. According to a comprehensive analysis published by Nature, global investment in the science and technology that underpin food production has begun to stagnate — and in many countries, to decline. This slowdown is occurring even as global populations grow and demand for food rises, creating what researchers warn is a widening imbalance between supply and demand.
The study examined public and private agrifood research and development spending across 150 countries from 1980 to 2021. The findings show that between 2015 and 2021, growth in real R&D spending averaged just 1.9% per year — one-third slower than the long-term rate from 1980 to 2015. In more than half of the world’s countries, absolute spending growth has slowed; in one-third, it has fallen outright. This shift has major implications, since advances in agricultural productivity typically take decades to materialize. A slowdown today, researchers warn, means higher food prices and mounting environmental pressure for many years to come.
A dramatic change in who invests is reshaping the landscape. In 1980, public agencies and universities accounted for two-thirds of all agrifood R&D spending; by 2021, private companies had matched them. Middle-income countries — led by China, India and Brazil — have overtaken high-income nations in total R&D spending, now driving half of all global investment. Meanwhile, low-income countries, particularly in sub-Saharan Africa, remain severely under-resourced, despite anticipating some of the world’s largest future increases in food demand.
Nature’s analysis highlights that most of the gains in agricultural output over the past four decades came not from expanding farmland but from increasing productivity per hectare — improvements largely driven by decades of earlier research. Today, however, those productivity gains are slowing. Biological and physical limits, depleted natural resources and climate change are making it harder to achieve even linear increases in crop yields. For example, global wheat yields took just 12 years to increase by 50% in the 1960s; today a comparable increase takes more than 30 years.
Researchers warn that current trends could destabilize global food systems. As agrifood R&D slows, innovations needed to manage water scarcity, soil degradation, pests and extreme weather will arrive too late or fail to scale. Private-sector investment, although robust, typically focuses on profitable, patentable technologies rather than long-term foundational research that benefits society at large. Without strong public-sector involvement, the pace and equity of innovation decline.
The consequences could be severe: widening hunger, degraded ecosystems, escalating food prices and heightened geopolitical risks stemming from agricultural dependence and scarcity. Nature’s report argues that reversing the spending decline is urgent. Global agrifood R&D investment, it concludes, must double within five years and then sustain real growth of roughly 3% annually to meet mid-century food demand.
Achieving this will require coordinated global action, including stronger public–private partnerships, more resilient funding models insulated from political cycles, and regulatory frameworks that support the deployment of gene-edited crops, advanced data-driven technologies and climate-resilient farming systems. Without such changes, researchers warn that governments are taking past agricultural successes for granted — and risking a future defined by scarcity, inequality and rising instability.
