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GOVERNMENT PURCHASES OF GOODS AND SERVICES: Expenditures on final goods and services (that is, gross domestic product) undertaken by the government sector. The official entry for government purchases in the National Income and Product Accounts maintained by the Bureau of Economic Analysis is termed government consumption expenditures and gross investment. Government purchases are used to operate the government (administrative salaries, etc.) and to provide public goods (national defense, highways, etc.). Government purchases do not include other government spending for transfer payments. These are expenditures on final goods by all three levels of government: federal, state, and local governments.

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DEMAND ELASTICITY AND TOTAL EXPENDITURE: The notion that price-induced changes in total expenditure for a good (price times quantity) depends on the relative price elasticity of demand. In particular, for relatively elastic demand (1 < E < ∞) changes in price cause total expenditure to change in the opposite direction. An increase in price causes total expenditure to fall and a decrease in price causes total expenditure to rise. For relatively inelastic demand (0 < E < 1) changes in price cause total expenditure to change in the same direction. An increase in price causes total expenditure to rise and a decrease in price causes total expenditure to fall. For unit elastic demand (E =1) price changes do not cause any change in total expenditure. Total expenditure is the same whether price increases or decreases.

     See also | elasticity | price elasticity of demand | price | quantity | relatively elastic | relatively inelastic | unit elastic |


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DEMAND ELASTICITY AND TOTAL EXPENDITURE, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2018. [Accessed: January 23, 2018].


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AVERAGE PHYSICAL PRODUCT

The quantity of total output produced per unit of a variable input, holding all other inputs fixed. Average physical product, usually abbreviated APP, is found by dividing total physical product by the quantity of the variable input. Average product, which more often goes by the shorter name average product (AP), is one of two measures derived from total physical product. The other is marginal physical product.

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