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ARC ELASTICITY: The average elasticity for discrete changes in two variables, A and B. The distinguishing characteristic of arc elasticity is that percentage changes are calculated based on the average of the initial and ending values of each variable, rather than only initial values. Arc elasticity is generally calculated using the midpoint formula. Arc elasticity should be compared with point elasticity. For infinitesimally small changes in variables A and B, arc elasticity is the same as point elasticity.

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BALANCE OF TRADE

The difference between the value of goods and services exported out of a country and the value of goods and services imported into the country. The balance of trade is the official term for net exports that makes up the balance of payments. The balance of trade can be a "favorable" surplus (exports exceed imports) or an "unfavorable" deficit (imports exceed exports). The official balance of trade is separated into the balance of merchandise trade for tangible goods and the balance of services.

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GRAY SKITTERY
[What's This?]

Today, you are likely to spend a great deal of time flipping through the yellow pages looking to buy either a how-to book on home repairs or a large, stuffed kitty cat. Be on the lookout for high interest rates.
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This isn't me! What am I?

Woodrow Wilson's portrait adorned the $100,000 bill that was removed from circulation in 1929. Woodrow Wilson was removed from circulation in 1924.
"Most human beings have an almost infinite capacity for taking things for granted. "

-- Aldous Huxley, writer

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