Agriculture, in economics, is the sector that produces crops, livestock, forestry products and fish. Together with mining it forms the primary sector, the part of the economy that takes resources directly from nature. Economists study it because it feeds every other activity, employs a large share of workers in poorer countries and behaves differently from industry: output depends on weather and biology, and a harvest cannot be sped up when prices rise.
Statisticians count farming output as value added in Gross Domestic Product (GDP) and Gross Value Added (GVA). Agriculture is usually discussed alongside Manufacturing and services, the secondary and tertiary sectors that grow as economies develop. Governments, the World Trade Organization (WTO) and bodies such as the Food and Agriculture Organization (FAO) all shape the sector through subsidies, trade rules and statistics.
Agriculture in plain terms
Picture a family vegetable garden that has to feed the whole street. The gardener can plant more next spring, but nothing she does in July will make tomatoes grow faster. One wet summer can ruin the crop; one perfect summer can produce so many tomatoes that nobody wants to pay for them.
That is agriculture at the scale of a country. Supply is set months in advance and is at the mercy of the weather, while people keep eating roughly the same amount whatever the price. So small changes in the harvest can cause big changes in what farmers earn, and governments often step in to steady things.
Agriculture's place in the economy
As countries get richer, farming's share of output and jobs falls even when farms produce more than ever. Machinery, fertilizer and better seeds raise productivity, so fewer people can feed everyone else, and workers move to factories and offices. This shift is one of the most reliable patterns in development economics.
- Worldwide, the FAO reports that agriculture, forestry and fishing employed about 916 million people in 2023, around 26 percent of total employment.
- The sector's share of world output is much smaller, roughly 4 percent of global GDP in recent years, which shows how much lower output per worker is on farms than elsewhere.
- In Pakistan, the Economic Survey 2024–25 put agriculture at about 23.5 percent of GDP and close to 37 percent of the labor force; in India, close to half of workers still depend on farming.
- In the United States and the euro area, farming is a low single-digit share of employment and output.
In developing countries, farming is also a big source of exports and foreign currency, which links crop prices directly to the exchange rate and the balance of payments.
Why farm prices and incomes swing
Two features make farm markets volatile. Demand for basic food is inelastic: people do not eat twice as much bread when it is cheap. Supply is also slow to react, because planting decisions are made a season ahead. When a good harvest meets steady demand, prices can collapse; a drought can send them soaring.
Economists illustrate the lag with the "cobweb" model, in which farmers plant based on last year's price, overshoot, and then cut back, producing cycles of glut and shortage. Farmers and food companies manage the risk with futures contracts, crop insurance and forward contracts, and many farm products trade as a commodity on organized exchanges. Grain stored in warehouses can be financed with a warehouse receipt, which lets a farmer borrow against the crop instead of selling at harvest-time lows.
Farm policy and subsidies
Few sectors receive as much government support. Rich economies use direct payments, price floors, subsidized insurance and import barriers; poorer ones often subsidize fertilizer or set minimum purchase prices. Supporters argue that food security, rural jobs and the special risks of farming justify a subsidy. Critics reply that support often flows to the largest landowners, encourages overproduction and harms farmers in poorer countries who must compete against subsidized exports.
- European Union. The Common Agricultural Policy, created in 1962, combines income support and rural development payments and remains one of the largest items in the EU budget.
- United States. Multi-year farm bills set commodity programs, crop insurance subsidies and food assistance.
- South Asia. India's minimum support prices and Pakistan's wheat procurement prices set floors for key staples.
Agriculture and world trade
Farm trade was largely left outside the General Agreement on Tariffs and Trade (GATT) for decades. The Uruguay Round brought it in through the WTO Agreement on Agriculture, which took effect in 1995 and set limits on trade-distorting domestic support and export subsidies. Even so, farm goods still face higher protection than most manufactures, through a tariff, a tariff-rate quota or health rules. Comparative advantage explains why land-rich countries such as Brazil, Australia and Argentina export grain and meat while crowded, rich economies import them.
Food prices also feed straight into inflation, especially in poorer countries where food is a large part of the Consumer Price Index (CPI). A poor harvest, an export ban by a big producer or a jump in fertilizer and fuel costs can act as a supply shock for the whole economy.