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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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COMPARATIVE ADVANTAGE

The ability to produce one good at a relatively lower opportunity cost than other goods, especially compared to production in another country. Every person or country has a comparative advantage in production of at least one good or service, even with relatively limited production technology. A related, but contrasting concept is absolute advantage. Both terms are perhaps most important to the study of international trade, but also provide insight into other exchanges.

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ORANGE REBELOON
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Today, you are likely to spend a great deal of time browsing about a thrift store hoping to buy either a set of luggage without wheels or a how-to book on wine tasting. Be on the lookout for neighborhood pets, especially belligerent parrots.
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The average bank teller loses about $250 every year.
"It is not the brains that matter most, but that which guides them ‚ the character, the heart, the generous qualities, progressive ideas. "

-- Fyodor Dostoyevsky - Writer

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