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  2. Sector model - Wikipedia

    en.wikipedia.org/wiki/Sector_model

    The sector model, also known as the Hoyt model, is a model of urban land use proposed in 1939 by land economist Homer Hoyt. [1] It is a modification of the concentric zone model of city development. The benefits of the application of this model include the fact it allows for an outward progression of growth. As with all simple models of such ...

  3. Circular flow of income - Wikipedia

    en.wikipedia.org/wiki/Circular_flow_of_income

    The four-sector model adds the foreign sector to the three-sector model. [17] [18] [23] (The foreign sector is also known as the "external sector," the "overseas sector," [19] or the "rest of the world.") Thus, the four-sector model includes (1) households, (2) firms, (3) government, and (4) the rest of the world. It excludes the financial sector.

  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. Urban structure - Wikipedia

    en.wikipedia.org/wiki/Urban_structure

    This model was the first to explain distribution of social groups within urban areas. Based on one single city, Chicago, it was created by sociologist Ernest Burgess [2] in 1924. According to this model, a city grows outward from a central point in a series of concentric rings. The innermost ring represents the central business district. It is ...

  6. Homer Hoyt - Wikipedia

    en.wikipedia.org/wiki/Homer_Hoyt

    Homer Hoyt (June 14, 1895 – November 29, 1984) was an American economist known for his pioneering work in land use planning, zoning, and real estate economics. [2] He conducted notable research on land economics and developed an influential approach to the analysis of neighborhoods and housing markets.

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  8. 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)

  9. Feldman–Mahalanobis model - Wikipedia

    en.wikipedia.org/wiki/Feldman–Mahalanobis_model

    The First Five-Year Plan stressed investment for capital accumulation in the spirit of the one-sector Harrod–Domar model. It argued that production required capital and that capital can be accumulated through investment : the faster one accumulates capital through investment, the higher the growth rate will be.