一道经济学问题 关于需求价格弹性的 原因If the price elasticity of demand for a good is 2, then a 10 percent increase in the price of that good ________ the quantity demanded by ________ percent.A) increases; 20B) decreases; 2C) decre
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一道经济学问题 关于需求价格弹性的 原因If the price elasticity of demand for a good is 2, then a 10 percent increase in the price of that good ________ the quantity demanded by ________ percent.A) increases; 20B) decreases; 2C) decre
一道经济学问题 关于需求价格弹性的 原因
If the price elasticity of demand for a good is 2, then a 10 percent increase in the price of that good ________ the quantity demanded by ________ percent.
A) increases; 20
B) decreases; 2
C) decreases; 10
D) decreases; 20
E) increases; 8
一道经济学问题 关于需求价格弹性的 原因If the price elasticity of demand for a good is 2, then a 10 percent increase in the price of that good ________ the quantity demanded by ________ percent.A) increases; 20B) decreases; 2C) decre
正确答案:D. 需求价格弹性是指商品需求变化对价格变化的反应程度,用公式表示为E=-需求变化率/价格变化率.题中指出该商品的需求价格弹性为2,即需求变化率为价格变化率的2倍,又因为价格上升,需求下降,所以当价格上涨10%时,需求下降20%.由此可得正确答案为D.