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HERFINDAHL-HIRSHMAN INDEX: A measure of concentration of the production in an industry that's calculated as the sum of the squares of market shares for each firm. This is an alternative method of summarizing the degree to which an industry is oligopolistic and the relative concentration of market power held by the largest firms in the industry. The Herfindahl index gives a better indication of the relative market control of the largest firms than can be found with the four-firm and eight-firm concentration ratios.
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AGGREGATE EXPENDITURES LINE: A line representing the relation between aggregate expenditures and gross domestic product used in the Keynesian cross. The aggregate expenditure line is obtained by adding investment expenditures, government purchases, and net exports to the consumption line. As such, the slope of the aggregate expenditure line is largely based on the slope of the consumption line (which is the marginal propensity to consume), with adjustments coming from the marginal propensity to invest, the marginal propensity for government purchases, and the marginal propensity to import. The intersection of the aggregate expenditures line and the 45-degree line identifies the equilibrium level of output in the Keynesian cross. See also | aggregate expenditures | gross domestic product | Keynesian cross | consumption expenditures | investment expenditures | government purchases | net exports | consumption line | marginal propensity to consume | marginal propensity to invest | marginal propensity for government purchases | marginal propensity to import | 45-degree line | Keynesian economics | aggregate demand |
Recommended Citation:AGGREGATE EXPENDITURES LINE, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2023. [Accessed: February 4, 2023].
AmosWEB Encyclonomic WEB*pedia:Additional information on this term can be found at: WEB*pedia: aggregate expenditures line
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RESOURCE PRICES, SUPPLY DETERMINANT The prices of the resource inputs that affect production cost and the ability to sell a particular good, which are assumed constant when a supply curve is constructed. An increase in resources prices causes a decrease in supply and a decrease in resource prices causes an increase in supply. Resources prices are one of five supply determinants that shift the supply curve when they change. The other four are production technology, other prices, sellers' expectations, and number of sellers.
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Post WWI induced hyperinflation in German in the early 1900s raised prices by 726 million times from 1918 to 1923.
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"The greater danger for most of us is not that our aim is too high and we miss it, but that it is too low and we reach it." -- Michelangelo Buonarroti, Painter and Sculptor
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