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BLACK MARKET: An illegal market in which the price of the goods sold is above a legally set maximum price. A black market invariable results whenever the government imposes a price ceiling on a good. A common example of a price ceiling is rent controls on apartments in many large cities. Although landlords cannot "legally" rent apartments for more than the specified maximum, they often do so "illegally" by charging "finders fees" and "tenant association dues." In so doing, they have entered into the realm of black markets.

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MARGINAL COST AND LAW OF DIMINISHING MARGINAL RETURNS

Decreasing then increasing marginal cost, reflected by a U-shaped marginal cost curve, is the result of increasing then decreasing marginal returns. In particular the decreasing marginal returns is caused by the law of diminishing marginal returns. As such, the law of diminishing marginal returns affects not only the short-run production of a firm but also the cost of short-run production. This translates into a positively-sloped supply curve for profit-maximizing competitive firms.

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BLACK DISMALAPOD
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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius wanting to buy either a how-to book on wine tasting or a bookshelf that will fit in your closet. Be on the lookout for malfunctioning pocket calculators.
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John Maynard Keynes was born the same year Karl Marx died.
"Few things can help an individual more than to place responsibility on him, and to let him know that you trust him. "

-- Booker T. Washington, educator

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