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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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PERSONAL INCOME AND NATIONAL INCOME Personal income (PI) is the total income received by the members of the domestic household sector, which may or may not be earned from productive activities during a given period of time. National income (NI) is the total income earned by the citizens of the national economy resulting from their ownership of resources used in the production, which may or may not be received by members of the household sector. Personal income can be derived from national income by subtracting income earned but not received (IEBNR) and adding income received but not earned (IRBNE).
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BLUE PLACIDOLA
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Today, you are likely to spend a great deal of time looking for a downtown retail store trying to buy either a rechargeable battery for your cell phone or a T-shirt commemorating the 2000 Olympics. Be on the lookout for infected paper cuts.
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In the Middle Ages, pepper was used for bartering, and it was often more valuable and stable in value than gold.
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"He who has begun has half done. Dare to be wise ‚ begin! " -- Horace, poet, satirist
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NYFE
New York Futures Exchange
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