A measure of how much the demand for a good or service increases or decreases in response to changes in price. A necessary good such as water or a service such as medical care might have low elasticity, since demand for such goods and services remains relatively stable at nearly any price.
Related information about elasticity of demand:
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 Price elasticity of demand (PED or Ed) is a measure used in economics to show   the responsiveness, or elasticity, of the quantity demanded of a good or service ...
 
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 Definition of elasticity of demand: The degree to which demand for a good or   service varies with its price. Normally, sales increase with drop in prices and ...
 
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 Jul 18, 2009 ... We know that consumers will react to price changes, but how MUCH will they   react? Knowing this is important to business owners and ...
 
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 Dec 9, 2007 ... What this important concept in economics means and how PED values are   calculated and interpreted.
 
- Price Elasticity of Demand - QuickMBA
 The meaning of price elasticity of demand and the factors that influence it.