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BUSINESS CYCLES: The recurring expansions and contractions of the national economy (usually measured by real gross domestic product). A complete cycle typically lasts from three to five years, but could last ten years or more. It is divided into four phases -- expansion, peak, contraction, and trough. Unemployment inevitably rises during contractions and inflation tends to worsen during expansions. To avoid the inflation and unemployment problems of business cycles, the federal government frequently undertakes various fiscal and monetary policies.
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INJECTIONS LINE A graphical representation of the relation between the level of aggregate production and one or more injections. The three injections (non-consumption expenditures on aggregate production) are investment expenditures, government purchases and exports. The injections line sequentially adds, or layers, each of these three expenditures depending on the number of sectors used in the analysis (two, three, or four). The slope of the injections line depends on which if any of the expenditures are induced by aggregate production. The injections line is combined with the leakages line (containing saving, taxes, and imports) in the Keynesian injections-leakages model.
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GREEN LOGIGUIN
[What's This?]
Today, you are likely to spend a great deal of time flipping through mail order catalogs looking to buy either a battery-powered, rechargeable vacuum cleaner or a remote controlled World War I bi-plane. Be on the lookout for crowded shopping malls.
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This isn't me! What am I?
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The wealthy industrialist, Andrew Carnegie, was once removed from a London tram because he lacked the money needed for the fare.
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"Whenever you fall, pick up something. " -- Oswald Avery, scientist
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ARIMA
Autoregressive Integrated Moving Average
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