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VARIABLE INPUT: An input whose quantity can be changed in the time period under consideration. This should be immediately compared and contrasted with fixed input. The most common example of a variable input is labor. A variable input provides the extra inputs that a firm needs to expand short-run production. In contrast, 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. This is, by the way, the law of diminishing marginal returns.
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CONSUMER SURPLUS The satisfaction that consumers obtain from a good over and above the price paid. This is the difference between the maximum demand price that buyers are willing to pay and the price that they actually pay. A related notion from the supply side of the market is producer surplus.
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BLUE PLACIDOLA [What's This?]
Today, you are likely to spend a great deal of time at a garage sale wanting to buy either a stretchable, flexible watch band or high-gloss photo paper that works with your printer. Be on the lookout for attractive cable television service repair people. Your Complete Scope
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The Dow Jones family of stock market price indexes began with a simple average of 11 stock prices in 1884.
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"I can feel guilty about the past, apprehensive about the future, but only in the present can I act." -- Abraham Maslow, Psychologist
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IIPF International Institute of Public Finance
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