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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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OPEN ECONOMY An economy that engages in international trade, especially one that exports goods and services to, and imports goods and services from, other economies that make up its foreign sector. It is "open" in the sense that goods and services flow into and out of the country. The alternative to an open economy is a closed economy, one that does not engage in international trade.
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ORANGE REBELOON
[What's This?]
Today, you are likely to spend a great deal of time at an auction hoping to buy either income tax software or a how-to book on the art of negotiation. Be on the lookout for slow moving vehicles with darkened windows.
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This isn't me! What am I?
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The portrait on the quarter is a more accurate likeness of George Washington than that on the dollar bill.
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"Do something wonderful; people may imitate it. " -- Albert Schweitzer, theologian, physician
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JET
Journal of Economic Theory
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