問題詳情

請依下文回答第 16 題至第 20 題Price elasticity of demand (PED) is a measure used in economics to show the relationship between a change in thequantity demanded of a particular good or service and a change in its price. More 16 , it gives the percentagechange in quantity demanded in response to a one percent change in price.PED is often used when discussing price sensitivity in economics. In general, the demand for a good is said tobe elastic, or 17 price changes,when its PED is greater than one. That is, changes in price have a relatively largeeffect on the quantity of a good demanded. 18 , the demand for a good is said to be inelastic when the PED is lessthan one. In such cases, a large change in price is accompanied by a small amount of change in quantity demanded.Price elasticities are almost always negative, although analysts tend to ignore the sign even though this can lead toambiguity. According to the law of demand, when price goes up, demand goes down and vice versa. Thus, only goodswhich do not 19 the law of demand, such as Veblen goods for their exclusive nature and appeal as a statussymbol, have a positive PED.A firm’s revenue is maximized when price is set so that the PED is exactly one. Therefore, knowing PED helpsthe firm decide whether to raise, lower, or 20 price, which would require the firm to charge consumers differentprices for the same product. Typically, if demand is elastic, revenue is gained by reducing price, but if demand isinelastic, revenue is gained by raising price.
16
(A)passively
(B)passionately
(C)precisely
(D)permanently

參考答案

答案：C
難度：適中0.5
統計：A(0),B(1),C(1),D(0),E(0)

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