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DIAMOND-WATER PARADOX: The perplexing observation that water, which is more useful than diamonds, has a lower price. If price is related to utility, how can this occur? This paradox was first proposed by classical economists in the 19th century and was subsequently used as a stepping stone for developing the notion of marginal utility and the role it plays in the demand price of a good. The paradox is magically cleared up with an understanding of marginal utility and total utility. People are willing to pay a higher price for goods with greater marginal utility. As such, water which is plentiful has enormous total utility, but a low price because of a low marginal utility. Diamonds, however, have less total utility because they are less plentiful, but a high price because of a high marginal utility.

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ENDPOINT ELASTICITY FORMULA

A simple technique for calculating the coefficient of elasticity by estimating the elasticity for discrete changes in two variables using the initial values of each. The distinguishing characteristic of this formula is that percentage changes are calculated based on the initial values of each variable. An alternative technique is the midpoint elasticity formula.

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YELLOW CHIPPEROON
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Today, you are likely to spend a great deal of time wandering around the downtown area seeking to buy either a coffee cup commemorating last Friday (you know why) or a wall poster commemorating the first day of spring. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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This isn't me! What am I?

The wealthy industrialist, Andrew Carnegie, was once removed from a London tram because he lacked the money needed for the fare.
"Failure is the opportunity to begin again, more intelligently. "

-- Henry Ford, automobile manufacturer

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