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AD: The abbreviation for aggregate demand, which is the total (or aggregate) real expenditures on final goods and services produced in the domestic economy that buyers would willing and able to make at different price levels, during a given time period (usually a year). Aggregate demand (AD) is one half of the aggregate market analysis; the other half is aggregate supply. Aggregate demand, relates the economy's price level, measured by the GDP price deflator, and aggregate expenditures on domestic production, measured by real gross domestic product. The aggregate expenditures are consumption, investment, government purchases, and net exports made by the four macroeconomic sectors (household, business, government, and foreign).
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VARIABLE INPUT An input whose quantity can be changed in the time period under consideration. The most common example of a variable input is labor. Variable inputs provide the means used by a firm to control short-run production. The alternative to variable input is fixed input. A fixed input, like capital, provides the capacity constraint in production. As larger quantities of a variable input, like labor, are added to a fixed input like capital, the variable input becomes less productive, which is the law of diminishing marginal returns.
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GREEN LOGIGUIN [What's This?]
Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club trying to buy either an ink cartridge for your printer or a rechargeable battery for your camera. Be on the lookout for malfunctioning pocket calculators. Your Complete Scope
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One of the largest markets for gold in the United States is the manufacturing of class rings.
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"The tragedy of life is not so much what men suffer, but rather what they miss. " -- Thomas Carlyle, Historian
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PBOT Phildelphia Board of Trade
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