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DIRECT: The mathematical notion that two variables change in the same direction, that is, an increase in X goes with an increase in Y, or a decrease in X goes with a decrease in Y. The alternative to a direct relation is an inverse relation, in which an increase in one variable goes with a decrease in the other. Direct relations are graphically illustrated by positively-sloped curves, a common example being the supply curve.
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ARC ELASTICITY The average elasticity for discrete changes in two variables. The distinguishing characteristic of arc elasticity is that percentage changes are calculated based on the average of initial and ending values of each variable, rather than initial values. Arc elasticity is generally calculated using the midpoint elasticity formula. The contrast to arc elasticity is point elasticity. For infinitesimally small changes in two variables, arc elasticity is the same as point elasticity.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time going from convenience store to convenience store looking to buy either a set of luggage without wheels or a how-to book on wine tasting. Be on the lookout for vindictive digital clocks with revenge on their minds.
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This isn't me! What am I?
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Lewis Carroll, the author of Alice in Wonderland, was the pseudonym of Charles Dodgson, an accomplished mathematician and economist.
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"No great performance ever came from holding back. " -- Don Greene, motivational coach, former Green Beret
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SEBI
Bombay Stock Exchange (India)
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