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YIELD CURVE: A curve plotting the yields (or returns) on securities with different maturity lengths. The standard yield is for U.S. Treasury securities with lengths ranging from 90 days to 30 years. The five maturity lengths are usually 90 day, 180 day, 2 year, 5 year, 10 year, and 30 year. The shape and slope fo the yield curve indicates the state of the economy and what's likely to come. A normal yield curve has a slight positive slope, with slightly higher yields for longer maturity securities. A steep yield curve suggests the end of a contraction and beginning of an expansion. An inverted, or negatively sloped yield curve is the sign of an upcoming contraction.

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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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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 home repairs or a large, stuffed kitty cat. Be on the lookout for pencil sharpeners with an attitude.
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Helping spur the U.S. industrial revolution, Thomas Edison patented nearly 1300 inventions, 300 of which came out of his Menlo Park "invention factory" during a four-year period.
"I not only use all the brains that I have, but all that I can borrow. "

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