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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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ABSOLUTE ADVANTAGE

The general ability to produce more goods or services using fewer resources. A person or country has an absolute advantage in production largely due to superior technology or greater technical efficiency. A related, but contrasting concept is comparative advantage. Both terms are perhaps most important to the study of international trade, but also provide insight into other exchanges.

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GRAY SKITTERY
[What's This?]

Today, you are likely to spend a great deal of time flipping through mail order catalogs trying to buy either a coffee cup commemorating the moon landing or a how-to book on surfing the Internet. Be on the lookout for florescent light bulbs that hum folk songs from the sixties.
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The portrait on the quarter is a more accurate likeness of George Washington than that on the dollar bill.
"Sometimes when you innovate, you make mistakes. It is best to admit them quickly and get on with improving your other innovations. "

-- Steve Jobs, Apple Computer founder

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