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OLIGOPOLY, REALISM: Real world markets are heavily populated by oligopoly. About half of all output produced in the U.S. economy each year is done so by oligopoly firms. Other industrialized nations can make a similar claim. Oligopoly markets arise in a wide assortment different industries, ranging from manufacturing to retail trade to resource extraction to financial services.
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RETURNS TO SCALE Changes in production the occur when all resources are proportionately changed in the long run. Returns to scale come in three forms--increasing, decreasing, or constant based on whether the changes in production are proportionally more than, less than, or equal to the proportional changes in inputs. Returns to scale are the guiding principle for long-run production, playing a similar role that the law of diminishing marginal returns plays for short-run production.
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GRAY SKITTERY [What's This?]
Today, you are likely to spend a great deal of time surfing the Internet trying to buy either a rechargeable flashlight or storage boxes for your computer software CDs. Be on the lookout for pencil sharpeners with an attitude. Your Complete Scope
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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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"You are younger today than you will ever be again. Make use of it for the sake of tomorrow. " -- Norman Cousins, editor
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ASX Australian Stock Exchange
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