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SAVING-INVESTMENT EQUALITY: A classical economic proposition stating that flexible prices ensure an equality between saving and investment. This equality is essential to obtain the classical economic conclusion that unrestricted markets achieve and maintain full employment. This is one of the three assumptions underlying classical economics. The other two assumptions are flexible prices and Say's law.
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                           AGGREGATE EXPENDITURES EQUATION: An equation that summarizes the four aggregate expenditures on gross domestic product by the four macroeconomic sectors. In the study of Keynesian economics, this equation is commonly used to summarize the demand side of the macroeconomy. The aggregate expenditures equation actually comes in three different versions depending on how many of the four sectors and their expenditures are included. The aggregate expenditures equation is the sum of the four aggregate expenditures (consumption expenditures, investment expenditures, government purchases, and net exports). This equation provides a short-hand notion that summarizes the demand side of the economy.The general aggregate expenditures equation is: where: AE is aggregate expenditures, C is consumption expenditures, I is investment expenditures, G is government purchases, and X-M is net exports, exports (X) minus imports (M).This particular version of the aggregate expenditures equation is for all four macroeconomic sectors (household sector, business sector, government sector, and foreign sector). In some circumstances reduced versions, with fewer sectors, are more useful. A three-sector version that includes the household, business, and government sectors is: And the simplest aggregate expenditures equation is for the two private sectors--household and business. It is specified as:
Recommended Citation:AGGREGATE EXPENDITURES EQUATION, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 2000-2026. [Accessed: July 10, 2026].
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Today, you are likely to spend a great deal of time at a going out of business sale looking to buy either a coffee cup commemorating the first day of spring or a printer that works with your stockpile of ink cartridges. Be on the lookout for slow moving vehicles with darkened windows.
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The first paper notes printed in the United States were in denominations of 1 cent, 5 cents, 25 cents, and 50 cents.
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