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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.
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MARGINAL COST CURVE A curve that graphically represents the relation between the marginal cost incurred by a firm in the short-run product of a good or service and the quantity of output produced. This curve is constructed to capture the relation between marginal cost and the level of output, holding other variables like technology and resource prices constant. Three related curves are average total cost curve, average variable cost curve, and average fixed cost curve.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time looking for a downtown retail store looking to buy either storage boxes for your computer software CDs or a set of tires. Be on the lookout for bottles of barbeque sauce that act TOO innocent.
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This isn't me! What am I?
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The average length of a "business lunch" is about 36 minutes.
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"How wonderful it is that nobody need wait a single moment before starting to improve the world." -- Anne Frank
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AEA
American Economic Association
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