KEYNESIAN AGGREGATE EXPENDITURE MODEL: The generic term for several graphical models used to analysis the basic components of Keynesian economics and to identify Keynesian equilibrium as the intersection of the aggregate expenditures line and the 45-degree line. Differences among the specific models are based on which sectors are included (household, business, government, and foreign) and whether expenditures are induced or autonomous.

     See also | Keynesian economics | Keynesian equilibrium | consumption line | aggregate expenditures line | 45-degree line | household sector | business sector | government sector | foreign sector | two-sector Keynesian model | three-sector Keynesian model | four-sector Keynesian model |

KEYNESIAN AGGREGATE EXPENDITURE MODEL, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2025. [Accessed: July 5, 2025].

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A production time period in which all inputs are variable, including those under control of the firm and those beyond the control of the firm. During the very long run, not only are the labor, capital, land, and entrepreneurship inputs variable, but so too are key production inputs such as government rules, technology, and social customs. This is one of four production time periods used in the study of microeconomics. The other three are short run, long run, and very short run.

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