Answer to Question #25949 in Microeconomics for Kleopas christian
demand equals ............
& 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 to a change in its price. More precisely, it gives the percentage change in quantity demanded in response to a one percent change in price (ceteris paribus, i.e. holding constant all the other determinants of demand, such as income). It was devised by Alfred Marshall.
Price elasticity of demand = |change in quantity demanded/change in price| = |80%/-40%| = 2, so the demand is elastic.
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