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KEYNESIAN EQUILIBRIUM: The state of the macroeconomy in which aggregate expenditures are equal to aggregate output. This is illustrated using the income-expenditure model, or Keynesian cross, as the intersection of the aggregate expenditures line and the 45-degree line. The aggregate expenditures line is the summation of consumption expenditures, investment expenditures, government purchases, and net exports. The 45-degree line represents all combinations in which aggregate expenditures equal aggregate output. Keynesian equilibrium is also represented by the saving-investment, or injection-leakage, model as the intersection between the injection line (investment expenditures, government purchases, and exports) and the leakage line (saving, taxes, and imports).
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MARGINAL REVENUE, MONOPOLY The change in total revenue resulting from a change in the quantity of output sold. Marginal revenue indicates how much extra revenue a monopoly receives for selling an extra unit of output. It is found by dividing the change in total revenue by the change in the quantity of output. Marginal revenue is the slope of the total revenue curve and is one of two revenue concepts derived from total revenue. The other is average revenue. To maximize profit, a monopoly equates marginal revenue and marginal cost.
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YELLOW CHIPPEROON
[What's This?]
Today, you are likely to spend a great deal of time browsing through a long list of dot com websites trying to buy either a T-shirt commemorating the 2000 Presidential election or a really, really exciting, action-filled video game. Be on the lookout for infected paper cuts.
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This isn't me! What am I?
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Two and a half gallons of oil are needed to produce one automobile tire.
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"Success is the ability to go from one failure to another with no loss of enthusiasm." -- Sir Winston Churchill
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PPF
Production Possibilities Frontier
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