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THREE-SECTOR AGGREGATE EXPENDITURES LINE: A graphical depiction of the relation between aggregate expenditures by the three domestic macroeconomic sectors (household, business, and government) and the level of aggregate income or production. The three-sector aggregate expenditures line combines consumption expenditures, investment expenditures, and government purchases. The slope of this aggregate expenditures line is based on the marginal propensity to consume, adjusted for marginal propensities of the other expenditures that are assumed to be induced when constructing the line. This is one of three aggregate expenditures lines based on the number of sectors included. The others are the two-sector aggregate expenditures line and the four-sector aggregate expenditures line.

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AVERAGE COST

The opportunity cost incurred per unit of good produced. This is calculated by dividing the cost of production by the quantity of output produced. While average cost is a general term relating cost and the quantity of output, three specific average cost terms are average total cost, average variable cost, and average fixed cost. A related cost term is marginal cost.

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BLACK DISMALAPOD
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Today, you are likely to spend a great deal of time at a flea market trying to buy either a pair of red goulashes with shiny buckles or a handcrafted bird feeder. Be on the lookout for spoiled cheese hiding under your bed hatching conspiracies against humanity.
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The penny is the only coin minted by the U.S. government in which the "face" on the head looks to the right. All others face left.
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International Bank for Reconstruction and Development
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