### ELASTICITY OF DEMAND

ELASTICITY OF DEMAND Elasticity is a measure of the responsiveness of quantity demanded or quantity supplied to one of its determinants. Economists usually refer to the coefficient of elasticity as the price elasticity of demand, a measure of how much the quantity demanded of a good responds to a change in the price of that good, computed as the percentage change in the quantity demanded divided by the percentage change in price. Other coefficients of elasticity may relate to 'income elasticity of demand', 'cross-elasticity of demand', What Is Price Elasticity of Demand? Price elasticity of demand is an economic measure of the change in the quantity demanded or purchased of a product in relation to its price change. Expressed mathematically, it is: Price Elasticity of Demand = % Change in Quantity Demanded / % Change in price. There are different types of price elasticity of demand i.e. 1) perfectly elastic demand, 2) perfectly inelastic demand, 3) relatively elastic d