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|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|
One classical breakdown of economic activity distinguishes three sectors:
- Primary: involves the retrieval and production of raw materials, such as corn, coal, wood and iron. (A coal miner and a fisherman would be workers in the primary sector.)
- Secondary: involves the transformation of raw or intermediate materials into goods e.g. manufacturing steel into cars, or textiles into clothing. (A builder and a dressmaker would be workers in the secondary sector.)
- Tertiary: involves the supplying of services to consumers and businesses, such as baby-sitting, cinema and banking. (A shopkeeper and an accountant would be workers in the tertiary sector.)
An economy may include several sectors (also called "industries") that evolved in successive phases:
- The ancient economy built mainly on the basis of subsistence farming.
- The industrial revolution lessened the role of subsistence farming, converting land-use to more extensive and monocultural forms of agriculture over the last three centuries. Economic growth took place mostly in the mining, construction and manufacturing industries.
- In the economies of modern consumer societies, services, finance, and technology – the knowledge economy – play an increasingly significant role.
An economy can also be divided along different lines:
- Three-sector theory
- Jean Fourastié
- Industry classification
- Division of labour
- Economic development
- Zoltan Kenessey. "The Primary, Secondary, Tertiary and Quaternary Sectors of the Economy" (PDF). The Review of Income and Wealth. Retrieved 20 April 2012.
Regarding the terminology itself Clark informs that "the term tertiary industries was originated by Professor A. G. B. Fisher in New Zealand, and became widely known through the publication of his book, The Clash of Progress and Security, in 1935. It took its origin from the titles current in Australia and New Zealand of 'primary industry' for agriculture, grazing, trapping, forestry, fishing and mining, and 'secondary industry' for manufacture. In Australia and New Zealand these terms are not only used in statistical reference books but are widely current in popular discussion. The phrase 'tertiary industries' therefore immediately carries, in these countries, a suggestion of those excluded by the official definition of 'secondary industries."
- Matt Rosenberg (14 January 2007). "Sectors of the Economy". About.com. Retrieved 20 April 2012.
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