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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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FIRST-DEGREE PRICE DISCRIMINATION

A form of price discrimination in which a seller charges the highest price that buyers are willing and able to pay for each quantity of output sold. This is also termed perfect price discrimination because the seller is able to extract ALL consumer surplus from the buyers. This is one of three price discrimination degrees. The others are second-degree price discrimination and third-degree price discrimination.

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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius trying to buy either a T-shirt commemorating yesterday or a pair of handcrafted oven mitts. Be on the lookout for crowded shopping malls.
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A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court!
"A leader, once convinced that a particular course of action is the right one, must . . . be undaunted when the going gets tough."

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Weak Law of Large Numbers
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