作者betray911015 (回頭太難)
看板Economics
標題[請益] 需求彈性與供給彈性
時間Tue Dec 29 12:23:13 2009
An increase in the supply of cellular phones reduces their
price by 20%. If the elasticity of demand for cellular phone
is 2 and the elasticity of supply is 1. how much do sales of
cellular phones increase?
要怎麼導出這彼此之間的關係式??
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