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LRAC CURVE: The common abbreviation for the long-run average cost curve, which is 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 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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CHANGE IN QUANTITY SUPPLIED A movement along a given supply curve caused by a change in supply price. The only factor that can cause a change in quantity supplied is price. A related, but distinct, concept is a change in supply.
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GREEN LOGIGUIN
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Today, you are likely to spend a great deal of time strolling through a department store seeking to buy either a remote controlled train set or a genuine down-filled snow parka. Be on the lookout for the happiest person in the room.
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In the early 1900s around 300 automobile companies operated in the United States.
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"Rowing harder doesn't help if the boat is headed in the wrong direction. " -- Kenichi Ohmae, management consultant
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AR(N)
A nth-order Autoregressive Process
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