Primary sector (raw materials)
Secondary sector (manufacturing)
Tertiary sector (services)
Quaternary sector (information services)
Quinary sector (human services)
|AGB Fisher · Colin Clark · Jean Fourastié|
|Sectors by ownership|
|Business sector · Private sector · Public sector · Voluntary sector|
The primary sector of the economy includes any industry involved in the extraction and production of raw materials, such as farming, logging, fishing, forestry and mining.
The primary sector tends to make up a larger portion of the economy in developing countries than it does in developed countries. For example, in 2018, agriculture, forestry, and fishing comprised more than 15% of GDP in sub-Saharan Africa but less than 1% of GDP in North America.
In developed countries the primary sector has become more technologically advanced, enabling for example the mechanization of farming, as compared with lower-tech methods[a] in poorer countries. More developed economies may invest additional capital in primary means of production: for example, in the United States corn belt, combine harvesters pick the corn, and sprayers spray large amounts of insecticides, herbicides and fungicides, producing a higher yield than is possible using less capital-intensive techniques. These technological advances and investment allow the primary sector to employ a smaller workforce, so developed countries tend to have a smaller percentage of their workforce involved in primary activities, instead having a higher percentage involved in the secondary and tertiary sectors.
Main article: List of countries by GDP sector composition
Countries by agricultural output (in PPP terms) at peak level as of 2018 (billions in USD)
|(—) European Union|
|(08) United States|