作者betray911015 (回头太难)
看板Economics
标题[请益] 需求弹性与供给弹性
时间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?
要怎麽导出这彼此之间的关系式??
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