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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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ASSUMPTION An initial condition or statement of a model or theory that sets the stage for an analysis by abstracting from the real world. Assumptions are important to economic analysis. Some assumptions are used to simplify a complex analysis into more easily manageable parts. Other assumptions are used as control conditions that are subsequently changed to evaluate the consequences.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club trying to buy either a birthday greeting card for your mother that doesn't look like a greeting card or a handcrafted spice rack. Be on the lookout for infected paper cuts.
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Woodrow Wilson's portrait adorned the $100,000 bill that was removed from circulation in 1929. Woodrow Wilson was removed from circulation in 1924.
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"Gravitation can not be held responsible for people falling in love." -- Albert Einstein
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EMA
Econometrica
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