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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 INCREASE, SHORT-RUN AGGREGATE MARKET A shock to the short-run aggregate market caused by an increase in aggregate supply, resulting in and illustrated by a rightward shift of the short-run aggregate supply curve. An increase in aggregate supply in the short-run aggregate market results in a decrease in the price level and an increase in real production. The level of real production resulting from the shock can be greater or less than full-employment real production.
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BLACK DISMALAPOD
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Today, you are likely to spend a great deal of time at a dollar discount store seeking to buy either a hepa filter for your furnace or a wall poster commemorating next Thursday. Be on the lookout for a thesaurus filled with typos.
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The first paper currency used in North America was pasteboard playing cards "temporarily" authorized as money by the colonial governor of French Canada, awaiting "real money" from France.
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"Long-range goals keep you from being frustrated by short-term failures " -- J. C. Penney, Retailer
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PBOT
Phildelphia Board of Trade
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