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AGGREGATE EXPENDITURE 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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TOTAL PRODUCT AND MARGINAL PRODUCT A mathematical connection between marginal product and total product stating that marginal product IS the slope of the total product curve. If the total product curve has a positive slope (that is, is upward sloping), then marginal product is positive. If the total product curve has a negative slope (downward sloping), then marginal product is negative. If the total product curve has a zero slope (horizontal), then marginal product is zero.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time watching the shopping channel seeking to buy either a T-shirt commemorating the 2000 Olympics or a genuine fake plastic Tiffany lamp. 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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Three-forths of the gold mined each year is used to manufacture jewelry.
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"The art of leadership is saying no, not yes. It is very easy to say yes. " -- Tony Blair, British prime minister
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AS-AD
Aggregate Supply-Aggregate Demand Model
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