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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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PREFERENCES CHANGE, UTILITY ANALYSIS A disruption of consumer equilibrium identified with utility analysis caused by changes in the preferences for a good, which likely results in a change in the quantities of the goods consumed. The change in preferences alters the marginal utility-price ratio and forces a reevaluation of the rule of consumer equilibrium.
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Paper money used by the Commonwealth of Massachusetts prior to the U.S. Revolutionary War, which was issued against the dictates of Britain, was designed by patriot and silversmith, Paul Revere.
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"We may affirm absolutely that nothing great in the world has been accomplished without passion." -- Hegel
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NEDC
National Economic Development Council
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