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  2. 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.

  3. Sector model - Wikipedia

    en.wikipedia.org/wiki/Sector_model

    A basic version of the 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.

  4. 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.

  5. Input–output model - Wikipedia

    en.wikipedia.org/wiki/Input–output_model

    The model depicts inter-industry relationships within an economy, showing how output from one industrial sector may become an input to another industrial sector. In the inter-industry matrix, column entries typically represent inputs to an industrial sector, while row entries represent outputs from a given sector.

  6. Three-sector model - Wikipedia

    en.wikipedia.org/wiki/Three-sector_model

    The three-sector model in economics divides economies into three sectors of activity: extraction of raw materials , manufacturing , and service industries which exist to facilitate the transport, distribution and sale of goods produced in the secondary sector . [1] The model was developed by Allan Fisher, [2] [3] [4] Colin Clark, [5] and Jean ...

  7. DeepSeek AI live: Chatbot vanishes in Italy amid claims OpenAI's model was used to train Chinese AI ... Technology .SX8P was the top winning sector, soaring 4.5%, and was set for its best single ...

  8. 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.

  9. Macroeconomics - Wikipedia

    en.wikipedia.org/wiki/Macroeconomics

    The AD–AS model is a common textbook model for explaining the macroeconomy. [53] The original version of the model shows the price level and level of real output given the equilibrium in aggregate demand and aggregate supply. The aggregate demand curve's downward slope means that more output is demanded at lower price levels. [54]