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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 SHIFTS Changes in the aggregate supply determinants shift both the short-run aggregate supply curve and the long-run aggregate supply curve. The mechanism is comparable to that for market supply determinants and market supply. There are two options--an increase in aggregate supply and a decrease in aggregate supply. An increase in resource quantity or quality or a decrease in resource price shifts one or both of the aggregate supply curves to right. A decrease in resource quantity or quality or an increase in resource price shifts one or both of the aggregate supply curves to left.
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Fact 7: Our Circular WorldOur little excursion through the economy has had, thus far, its ups and downs. My cable bill remains permanently confused and my checking account has a large property-tax created imbalance, but at least the pain in my tooth stops before hitting my toes. I think we deserve a little rest and relaxation at the Shady Valley's own tourist mecca, Happy-Time Gala-World Fun-Land Extravaganza Amusement Park. Let's take a brief respite from our pedestrian trek and give the soles of our jogging shoes a well-deserved rest. The Happy-Time Gala-World Fun-Land Extravaganza Amusement Park has the world famous Monster Loop Death Plunge roller coaster, guaranteed to make riders yearn for the pleasures of a Siberian forced labor camp. There's also the Enchanted Haunted Horror House filled with serial killers, chainsaw murders, and IRS auditors. For the more timid, and fortunately, for those more interested in the workings of our economy, the merry-go-round is the ride of choice. Two familiar faces are enjoying the circular trip on their fiberglass ponies. The slender guy with the bushy mustache is Dan Dreiling, the drywall man. I had him repair a hole in my living room wall caused by an over-excited vacuum cleaner a few months back. The disgusted look on his dusty face tells me that I must have overlooked his $100 bill. The other recognizable rider is Pollyanna Pumpernickel a precocious pet store owner who has somehow neglected to pay me the $100 due for hamster-sitting services which I rendered a few weeks ago. Her furtive glances suggest that she is well aware of her liability.
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BLUE PLACIDOLA
[What's This?]
Today, you are likely to spend a great deal of time watching the shopping channel seeking to buy either a large, stuffed giraffe or a birthday greeting card for your aunt. Be on the lookout for telephone calls from former employers.
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This isn't me! What am I?
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During the American Revolution, the price of corn rose 10,000 percent, the price of wheat 14,000 percent, the price of flour 15,000 percent, and the price of beef 33,000 percent.
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"Lord, where we are wrong, make us willing to change; where we are right, make us easy to live with. " -- Peter Marshall, US Senate chaplain
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AAO
Authorized Acquisition Objective
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