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ACTUAL INVESTMENT: Investment expenditures that the business sector actual undertakes during a given time period, including both planned investment and any unplanned inventory changes. This is a critical component of Keynesian economics and the analysis of macroeconomic equilibrium, which occurs when actual investment is equal to planned investment. The difference between planned and actual investment is unplanned investment, which is inventory changes caused by a difference between aggregate expenditures and aggregate output. Should actual and planned investment differ, then aggregate expenditures are not equal to aggregate output, and the macroeconomy is not in equilibrium.
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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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YELLOW CHIPPEROON
[What's This?]
Today, you are likely to spend a great deal of time searching the newspaper want ads trying to buy either a rechargeable battery for your cell phone or a T-shirt commemorating the 2000 Olympics. Be on the lookout for door-to-door salesmen.
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This isn't me! What am I?
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The earliest known use of paper currency was about 1270 in China during the rule of Kubla Khan.
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"Those who are blessed with the most talent don't necessarily outperform everyone else. It's the people with follow-through who excel. " -- Mary Kay Ash, May Kay Cosmetics founder
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PSBR
Public Sector Debt Repayment
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