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  2. Primary sector of the economy - Wikipedia

    en.wikipedia.org/wiki/Primary_sector_of_the_economy

    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. [ 1 ] [ 2 ] [ 3 ] The primary sector tends to make up a larger portion of the economy in developing countries than it does in developed countries .

  3. Outline of industry - Wikipedia

    en.wikipedia.org/wiki/Outline_of_industry

    Primary sector of the economy (the raw materials industry) Secondary sector of the economy (manufacturing and construction) Tertiary sector of the economy (the "service industry") Quaternary sector of the economy (information services) Quinary sector of the economy (humanitarian services)

  4. Economic sector - Wikipedia

    en.wikipedia.org/wiki/Economic_sector

    Three sectors according to Fourastié Clark's sector model. One classical breakdown of economic activity distinguishes three sectors: [1] Primary: involves the retrieval and production of raw-material commodities, such as corn, coal, wood or iron. Miners, farmers and fishermen are all workers in the primary sector.

  5. Industry classification - Wikipedia

    en.wikipedia.org/wiki/Industry_classification

    Economic activities can be classified in a variety of ways. At the top level, they are often classified according to the three-sector theory into sectors: primary (extraction and agriculture), secondary (manufacturing), and tertiary (services). Some authors add quaternary (knowledge) or even quinary (culture and research) sectors. Over time ...

  6. Three-sector model - Wikipedia

    en.wikipedia.org/wiki/Three-sector_model

    Three sectors according to Fourastié Clark's sector model 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 less of their economy made up of primary and secondary sectors and more emphasis in tertiary sectors.

  7. Circular flow of income - Wikipedia

    en.wikipedia.org/wiki/Circular_flow_of_income

    This graph shows the circular flow of income in a five-sector economy. The flow of money is shown with purple, and the flow of goods and services is shown with orange. Money flows in the opposite direction from goods and services. [1] Basic diagram of the circular flow of income.

  8. Tertiary sector of the economy - Wikipedia

    en.wikipedia.org/wiki/Tertiary_sector_of_the_economy

    The tertiary sector of the economy, generally known as the service sector, is the third of the three economic sectors in the three-sector model (also known as the economic cycle). The others are the primary sector (raw materials) and the secondary sector (manufacturing). The tertiary sector consists of the provision of services instead of end ...

  9. Economy of the United States by sector - Wikipedia

    en.wikipedia.org/wiki/Economy_of_the_United...

    The United States Census Bureau currently conducts a comprehensive Economic Census [1] every five years. The results of this survey are tabulated according to the NAICS and provide statistics about the U.S. economy.