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LONG-RUN AVERAGE COST CURVE: A curve depicting the per unit cost of producing a good or service in the long run when all inputs are variable. The long-run average cost curve (usually abbreviated LRAC) can be derived in two ways. On is to plot long-run average cost, which is, long-run total cost divided by the quantity of output produced. at different output levels. The more common method, however, is as an envelope of an infinite number of short-run average total cost curves. Such an envelope is base on identifying the point on each short-run average total cost curve that provides the lowest possible average cost for each quantity of output. The long-run average cost curve is U-shaped, reflecting economies of scale (or increasing returns to scale) when negatively-sloped and diseconomies of scale (or decreasing returns to scale) when positively sloped. The minimum point (or range) on the LRAC curve is the minimum efficient scale.
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EXCESS RESERVES The reserves (vault cash and Federal Reserve deposits) that banks have over and above what they are required by government to keep to back up deposits. The primary use of excess reserves, also termed free reserves, is for loans to consumers and businesses. Because reserves do not generate interest, revenue, or profit, banks are inclined to keep as few excess reserves as possible.
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ORANGE REBELOON
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Today, you are likely to spend a great deal of time at a going out of business sale seeking to buy either hand lotion, a big bottle of hand lotion or a lighted magnifying glass. Be on the lookout for telephone calls from long-lost relatives.
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Lombard Street is London's equivalent of New York's Wall Street.
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"One worthwhile task carried to a successful conclusion is worth half-a-hundred half-finished tasks. " -- Malcolm S. Forbes, publisher
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JEL
Journal of Economic Literature
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