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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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CLASSICAL ECONOMICS A theory of economics, especially directed toward macroeconomics, based on the unrestricted workings of markets and the pursuit of individual self interests. Classical economics relies on three key assumptions--flexible prices, Say's law, and saving-investment equality--in the analysis of macroeconomics. The primary implications of this theory are that markets automatically achieve equilibrium and in so doing maintain full employment of resources without the need for government intervention. Classical economics emerged from the foundations laid by Adam Smith in his book An Inquiry into the Nature and Causes of the Wealth of Nations, published in 1776. Although it fell out of favor in the 1930s, many classical principles remain important to modern macroeconomic theories, especially aggregate market (AS-AD) analysis, rational expectations theory, and supply-side economics.
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YELLOW CHIPPEROON
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Today, you are likely to spend a great deal of time surfing the Internet seeking to buy either a velvet painting of Elvis Presley or a wall poster commemorating yesterday. Be on the lookout for malfunctioning pocket calculators.
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Post WWI induced hyperinflation in German in the early 1900s raised prices by 726 million times from 1918 to 1923.
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"Enthusiasm is the greatest asset in the world. It beats money and power and influence. It is no more or less than faith in action. " -- Henry Chester, Writer
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USDA
United States Department of Agriculture
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