|Sectors by ownership|
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.
List of countries by agricultural output
Countries by agricultural output (in PPP terms) at peak level as of 2018 (billions in USD)
|(—) European Union|
|(08) United States|
- Often using non-powered equipment, sometimes even hand-picking and hand-planting
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- "primary producer". CollinsDictionary.com. HarperCollins. Retrieved 2019-12-10.
- Kjeldsen-Kragh, Søren (2007). The Role of Agriculture in Economic Development: The Lessons of History. Copenhagen Business School Press DK. p. 73. ISBN 978-87-630-0194-6.
- "Agriculture, forestry, and fishing, value added (% of GDP) | Sub-Saharan Africa". World Bank Open Data. 2018. Retrieved 2019-07-14.
- "Agriculture, forestry, and fishing, value added (% of GDP) | North America". World Bank Open Data. 2018. Retrieved 2019-07-14.
- "Employment in agriculture (% of total employment) (modeled ILO estimate) - Data". data.worldbank.org.
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- Dwight H. Perkins: Proceedings of the Academy of Political Science, Vol. 31, No. 1, China's Developmental Experience (Mar., 1973)
- Cameron: General Economic and Social History
- Historia Económica y Social General, by Maria Inés Barbero, Rubén L. Berenblum, Fernando R. García Molina, Jorge Saborido