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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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MACROECONOMIC SECTORS The four aggregate sectors of the macroeconomy--household, business, government, and foreign--that reflect four key macroeconomic functions and are responsible for four expenditures on gross domestic product. These four sectors are the primary "actors" on the macroeconomic stage. Macroeconomic theories then explain macroeconomic phenomena by exploring the interaction among these four sectors.
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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 wanting to buy either a genuine down-filled pillow or one of those "hang in there" kitty cat posters. Be on the lookout for a thesaurus filled with typos.
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The portrait on the quarter is a more accurate likeness of George Washington than that on the dollar bill.
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"The only thing that will stop you from fulfilling your dreams is you. " -- Tom Bradley, former Los Angeles mayor
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