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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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The AmosWEB QUIZ*tastic Testing System is a system of multiple choice exam questions that can be used to "practice up" for the real thing. To take a ten-question test on one of several economic topics, select your desired topic, then click the "Retrieve TEST" button. You can then submit your exam to be graded automatically. Return to this page to try another test.
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AVERAGE REVENUE AND MARGINAL REVENUE A mathematical connection between average revenue and marginal revenue stating that the change in the average revenue depends on a comparison between average revenue and marginal revenue. For perfect competition, with no market control, marginal revenue is equal to average revenue, and average revenue does not change. For monopoly and other firms with market control, marginal revenue is less than average revenue, and average revenue falls.
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Learning All About EDUCATIONIt's a bright spring morning, the sort of day that makes poets and pedestrians pontificate profusely about our wondrous world. But, wait... IT'S TEST DAY! You're late for an exam! You hurriedly roam the school halls, opening door after endless door along an infinite hallway, in search of your exam. All you discover, though, is Maurice Finklestein who smirks knowingly while ridiculing your tardiness. Why do we do it? Why do we put ourselves through 12 to 20 years of oppression in the halls of academia, learning stuff of questionable value? Why? Why? WHY?
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BLUE PLACIDOLA
[What's This?]
Today, you are likely to spend a great deal of time surfing the Internet looking to buy either a rechargeable battery for your camera or a coffee cup commemorating the first day of spring. Be on the lookout for fairy dust that tastes like salt.
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This isn't me! What am I?
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The first paper notes printed in the United States were in denominations of 1 cent, 5 cents, 25 cents, and 50 cents.
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"The first responsibility of a leader is to define reality. " -- Max DePree, executive
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AACT
American Assocation of Commodity Traders
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