elasˌticity of ˈdemand ( ˈprice elasˈticity of deˈmand)
noun
[, ; ] () the extent to which people want to buy more or less of a product or service when its price changes需求弹性◆The elasticity of demand for luxury goods tends to be higher than for necessities (= a small change in price results in a large change in the number of people buying them).奢侈品的需求弹性往往比必需品的大（价格的微小变化会导致购买数量的大幅度变化）。➡income elasticity of demand