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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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AGGREGATE SUPPLY DETERMINANTS An assortment of ceteris paribus factors that affect short-run and long-run aggregate supply, but which are assumed constant when the short-run and long-run aggregate supply curves are constructed. Changes in any of the aggregate supply determinants cause the short-run and/or long-run aggregate supply curves to shift. While a wide variety of specific ceteris paribus factors can cause the aggregate supply curves to shift, they are commonly grouped into three broad categories--resource quantity, resource quality, and resource price.
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BLUE PLACIDOLA
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Today, you are likely to spend a great deal of time browsing through a long list of dot com websites hoping to buy either a birthday greeting card for your grandfather or a weathervane with a cow on top. Be on the lookout for neighborhood pets, especially belligerent parrots.
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Three-forths of the gold mined each year is used to manufacture jewelry.
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"To understand a man, you must know his memories. The same is true of a nation." -- Anthony Quayle, Actor
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AOQ
Average Outgoing Quality
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