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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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ACCOUNTING COST An actual outlay or expenses incurred in the production of a good that shows up in a firm's accounting statements and records. Accounting cost is an explicit payment (that is, money changing hands) incurred by a firm. Accounting cost, while very important to accountants, company CEOs, shareholders, and the Internal Revenue Service, is only minimally important to economists. The reason is that economists are more interested in economic cost (also called opportunity cost), which is the value of foregone production.
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BLACK DISMALAPOD
[What's This?]
Today, you are likely to spend a great deal of time watching the shopping channel trying to buy either a weathervane with a cow on top or a box of multi-colored, plastic paper clips. Be on the lookout for strangers with large satchels of used undergarments.
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This isn't me! What am I?
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
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"Luck is what happens when preparation meets opportunity. " -- Seneca, Roman philosopher
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IADB
Inter-American Development Bank
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