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AGGREGATE EXPENDITURES: The total expenditures on gross domestic product undertaken in a given time period by the four sectors -- household, business, government, and foreign. Expenditures made by each of these sectors are specifically labeled consumption expenditures, investment expenditures, government purchases, and net exports. Aggregate expenditures (AE) are a cornerstone in the study of macroeconomics, playing critical roles in Keynesian economics, aggregate market analysis, and to a lesser degree, monetarism.
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PERFECT COMPETITION, EFFICIENCY Perfect competition is an idealized market structure that achieves an efficient allocation of resources. This efficiency is achieved because the profit-maximizing quantity of output produced by a perfectly competitive firm results in the equality between price and marginal cost. In the short run, this involves the equality between price and short-run marginal cost. In the long run, this is seen with the equality between price and long-run marginal cost at the minimum efficient scale of production.
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GREEN LOGIGUIN
[What's This?]
Today, you are likely to spend a great deal of time wandering around the downtown area hoping to buy either a coffee table shaped like the state of Florida or storage boxes for your summer clothes. Be on the lookout for door-to-door salesmen.
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This isn't me! What am I?
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A thousand years before metal coins were developed, clay tablet "checks" were used as money by the Babylonians.
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"Concentration is the secret of strength in politics, in war, in trade, in short in all management of human affairs. " -- Ralph Waldo Emerson, philosopher, poet
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OAS
Organization of American States
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