Agricultural productivity measures the amount of farm output produced relative to the inputs used to produce it — land, labour, capital and materials — and rises whenever more output is obtained from the same or fewer inputs.
The practical question it answers: is the same field, the same worker, or the same herd producing more than it used to?
Agricultural productivity is the applied, empirical cousin of the Production Function. Where the production function is a theoretical statement of what inputs can produce, productivity measurement is the exercise of tracking how much output an actual farm, region or country is getting from its actual inputs, over time.
What Is Agricultural Productivity?
At its simplest, productivity is a ratio: output divided by input. But agriculture uses many different inputs simultaneously, so there is no single “productivity” figure — there are several measures, and choosing the right one changes the story a number tells.
Partial productivity measures compare output to a single input, holding everything else out of the calculation. The most familiar are land productivity, commonly called yield — tonnes of maize per hectare — and labour productivity — output value per worker or per hour worked. These measures are simple to calculate and widely reported, but each one can mislead on its own. A yield increase driven purely by pouring on more fertiliser and machinery is not the same achievement as a yield increase driven by better seed genetics or management, yet a partial measure cannot tell the two apart.
Total factor productivity solves this by comparing output to a weighted aggregate of all major inputs — land, labour, capital and materials — combined. Because it accounts for every major input simultaneously, growth in Total Factor Productivity represents a genuine gain in efficiency: more output from the same overall bundle of resources, typically attributable to better technology, genetics or management rather than simply using more of everything.
Why Does Agricultural Productivity Matter?
It is how a growing population gets fed without a proportional expansion of farmland. World agricultural land has essentially stopped expanding — FAO reports it at roughly 4.8 billion hectares in 2023, only marginally different from two decades earlier, while cropland per person has fallen by about a fifth over the same period. Feeding a larger population from a roughly fixed land base is mathematically possible only if productivity rises to compensate.
It determines rural incomes as much as it determines food supply. A farmer who produces more output from the same land, labour and capital earns more from that same base of resources. This is why agricultural productivity growth, not simply agricultural output growth, is treated by development economists as a central lever for reducing rural poverty — output growth achieved purely by adding more inputs does not raise income per unit of resource the way productivity growth does.
It is slowing at exactly the moment global demand is not. USDA’s Economic Research Service reports that world agricultural output grew at an average annual rate of 2.3 percent between 1961 and 2021, but slowed to just 1.94 percent per year in the most recent decade — well below the 2.74 percent rate of the decade before it. The slowdown is concentrated almost entirely in productivity: growth in total factor productivity, the main long-run driver of increased output, fell from close to 2 percent a year in the 2000s to roughly 1 percent a year in the most recent period covered by the data.
It varies enormously by country and region, which shapes where hunger risk concentrates. Countries with strong research systems, extension services and input markets have sustained productivity growth for decades, while others have seen output rise mainly through using more land and labour rather than using resources more efficiently — a pattern that cannot continue once land and labour run out.
How Is Agricultural Productivity Measured in Practice?
USDA’s Economic Research Service constructs its widely used International Agricultural Productivity data product by aggregating global output across 199 commodities — 160 crops, 31 animal products and 8 aquaculture products — valued at consistent global average farm-gate prices, and comparing that output aggregate to a matching aggregate of land, labour, capital and material inputs. The resulting index isolates the portion of output growth that input growth alone cannot explain, which is by construction the productivity component.
This decomposition matters because it separates two very different stories that a raw output number cannot distinguish. USDA’s own breakdown of the sources of global agricultural output growth from 1961 to 2022 shows total output growth of 2.79 percent a year in the 1960s, of which essentially none came from productivity improvement and almost all came from applying more inputs per acre and expanding farmed area. By the 2000s, total output growth of 2.74 percent a year drew roughly 1.95 percentage points from productivity gains alone — productivity had gone from an afterthought to the dominant source of growth within four decades.
Key Takeaways
- Agricultural productivity measures output relative to the inputs used to produce it, and can be calculated as a partial measure (one input, such as yield per hectare) or as total factor productivity (all major inputs combined).
- Partial measures such as yield can be misleading on their own, since a yield increase from more inputs looks identical to one from better technology unless all inputs are tracked.
- With world agricultural land no longer expanding, productivity growth is the main remaining route to producing more food.
- Productivity growth, not output growth alone, is what raises income per unit of resource for farming households.
- World agricultural output growth slowed from 2.74 percent a year in 2001–10 to 1.94 percent a year in the most recent decade, driven mainly by a slowdown in productivity growth.
- The sources of output growth have shifted dramatically since 1961: productivity contributed almost nothing to growth in the 1960s but has been the dominant source of growth since the 1990s.
Frequently Asked Questions
What is the difference between agricultural productivity and agricultural output?
Output is simply the total quantity produced, regardless of how many resources it took to produce it. Productivity relates that output to the inputs used to produce it. Output can rise purely because a farm used more land, labour or fertiliser; productivity rises only when more output is obtained from the same or fewer inputs.
How is agricultural productivity measured?
It can be measured as a partial productivity ratio, such as yield (output per hectare) or labour productivity (output per worker), or as total factor productivity, which compares total output to a combined index of all major inputs — land, labour, capital and materials. Total factor productivity is considered the more reliable measure because it cannot be inflated simply by adding more of one input.
Why is agricultural productivity growth slowing?
USDA’s Economic Research Service attributes the recent slowdown to several overlapping factors, including climate change increasing the frequency of extreme weather that reduces average yields, public and private agricultural research investment not keeping pace with need, and trade barriers, conflict and restricted access to new technologies limiting how quickly productivity gains can spread.
What is agricultural yield?
Yield is a partial productivity measure: the quantity of output, typically in tonnes, produced per unit of land, typically a hectare. It is the most commonly reported productivity figure because it is simple to calculate, but it does not distinguish between yield gains from more intensive input use and yield gains from genuinely better technology or management.
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References and Further Reading
- Fuglie, K., Morgan, S. & Jelliffe, J. (2023). World agricultural output and productivity growth have slowed. USDA Economic Research Service, Amber Waves. https://www.ers.usda.gov/amber-waves/2023/december/world-agricultural-output-and-productivity-growth-have-slowed
- Fuglie, K., Morgan, S. & Jelliffe, J. (2024). World Agricultural Production, Resource Use, and Productivity, 1961–2020 (Report No. EIB-268). USDA Economic Research Service. https://ers.usda.gov/sites/default/files/_laserfiche/publications/108650/EIB-268.pdf
- Gollin, D., Lagakos, D. & Waugh, M. E. (2014). The agricultural productivity gap. The Quarterly Journal of Economics, 129(2), 939–993. https://doi.org/10.1093/qje/qjt056
- USDA Economic Research Service. Sources of growth in global agricultural output, 1961–2022. https://ers.usda.gov/sites/default/files/_laserfiche/Charts/58525/globalproductivity2022_d.html
- FAO. Land statistics 2001–2023: global, regional and country trends. FAOSTAT Analytical Brief. https://www.fao.org/statistics/highlights-archive/highlights-detail/land-statistics-2001-2023.-global–regional-and-country-trends/en
- USDA Economic Research Service. International Agricultural Productivity (data product). https://catalog.data.gov/dataset/international-agricultural-productivity