假设某种商品的需求曲线为Q=10-2P+P<sub>s</sub>.其中,P是垓商品的价格,而Ps是某种替代品的价格。己知替代品的价格カ2.00美元。

(1)如果P=1.00美元,需求的价格弹性为多少?交叉价格弹性又等于多少昵? (2)如果垓商品的价格P上涨到2.00美元,那么现在需求的价格弹性为多少?交叉价格弹性昵? Supuose: the demand curve for a producl is given by Q=10-2P+P,, where P is the price of the produet and P, is the price of a subtitute good. The price of the substitute god is S 2.00. (a) SupposeP= S 1. 00. What is the price elasticity of demand? What is the cross-price elas- ticity of demand? (b) Suppose the price of the good, P, inereases to $ 2.00. Now whal is the price clasticily of demand,and what is the cross-price elasticity of demand?

时间:2024-01-08 15:41:02

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