Economic sector - Wikipedia Economic sector This is the current revision of this page, as edited by ClueBot NG ( talk contribs ) at 10 : 57, 25 August 2017 ( Reverting possible vandalism by 73.94. 205.30 to version by Omnipaedista. Report False Positive ? Thanks, ClueBot NG. ( 3110285 ) ( Bot ) ). The present address ( URL ) is a permanent link to this version. Revision as of 10 : 57, 25 August 2017 by ClueBot NG ( talk contribs ) ( Reverting possible vandalism by 73.94. 205.30 to version by Omnipaedista. Report False Positive ? Thanks, ClueBot NG. ( 3110285 ) ( Bot ) ) ( diff ) ← Previous revision Latest revision ( diff ) Newer revision → ( diff ) Economic sectors Three - sector theory Primary sector : raw materials Secondary sector : manufacturing Tertiary sector : services Additional sectors Quaternary sector : information services Quinary sector : human services Theorists AGB Fisher Colin Clark Jean Fourastié Sectors by ownership Business sector Private sector Public sector Voluntary sector This figure illustrates the percentages of a country 's economy made up by different sector. The figure illustrates that countries with higher levels of socio - economic development tend to have proportionally less of their economies operating in the primary and secondary sectors and more emphasis on the tertiary sector. The less developed countries exhibit the inverse pattern. Three sectors according to Fourastié Clark 's sector model 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. ) In the 20th century, economists began to suggest that traditional tertiary services could be further distinguished from `` quaternary '' and quinary service sectors. Contents 1 Historic evolution 2 By ownership 3 See also 4 References Historic evolution 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. Even in modern times, developing countries tend to rely more on the first two sectors, in contrast to developed countries. By ownership An economy can also be divided along different lines : Public sector or state sector Private sector or privately run businesses Voluntary sector See also Three - sector theory Jean Fourastié Industry classification International Standard Industrial Classification North American Industry Classification System -- a sample application of sector - oriented analysis Division of labour Economic development References Jump up ^ 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. '' Jump up ^ Matt Rosenberg ( 14 January 2007 ). `` Sectors of the Economy ''. About.com. Retrieved 20 April 2012. This economics - related article is a stub. You can help Wikipedia by expanding it. Retrieved from `` https://en.wikipedia.org/w/index.php?title=Economic_sector&oldid=797173473 '' Categories : Economic systems Economic sectors Economics and finance stubs Hidden categories : All stub articles Talk Article Talk More Contents About Wikipedia In other projects Wikimedia Commons Afrikaans العربية Català Deutsch Eesti Ελληνικά Español Esperanto Euskara فارسی Français Bahasa Indonesia Italiano עברית Қазақша Latina Magyar Nederlands Norsk Polski Português Русский Simple English Українська Tiếng Việt Edit links This page was last edited on 25 August 2017, at 10 : 57. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: what are the main sectors of the economy
Answer: Primary