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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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INFLATION PROBLEMS Two notable problems are associated with inflation--uncertainty and haphazard redistribution. Inflation, especially inflation that varies from month to month and year to year, makes long-term planning quite difficult. Prices, wages, taxes, interest rates, and other nominal values that enter into consumer, business, and government planning decisions can be significantly affected by inflation. Moreover, inflation tends to redistribute income and wealth in a haphazard manner--some people win and some people lose. This redistribution might not be that desired by society, failing to promote any of the basic economic goals of efficiency, equity, stability, growth, or full-employment.
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BLACK DISMALAPOD
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Today, you are likely to spend a great deal of time at a garage sale looking to buy either a pair of leather sandals that won't cause blisters or clothing for your kitty cats. Be on the lookout for the happiest person in the room.
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
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"The only profit center is the customer. " -- Peter Drucker, management consultant
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BPEA
Brookings Papers on Economic Activity
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