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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 RULE OF SCARCITY The first of seven basic rules of the economy, stating that the world is faced with limited resources but unlimited wants and needs satisfied from these resources. Scarcity is THE economy problem upon which the entire study of economics is built. A primary implication of scarcity is that the pursuit of an activity results in an opportunity cost.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time calling an endless list of 800 numbers seeking to buy either several magazines on computer software or a T-shirt commemorating the second moon landing. Be on the lookout for telephone calls from long-lost relatives.
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This isn't me! What am I?
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It's estimated that the U.S. economy has about $20 million of counterfeit currency in circulation, less than 0.001 perecent of the total legal currency.
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"It is the mark of an educated mind to be able to entertain a thought without accepting it." -- Aristotle
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HDI
Human Development Index
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