2004-12-07 04:19:18 UTC
If the price of good X declines from $10 to $8, then the price elasticity of demand for good X in this case is:
<中文翻譯>
假設市場上X財的需求函數是P^2‧Q^4=800.若X財的價格由$10下降到$8,那麼X財的需求彈性是多少?
A) 1
B) 2
C) 4
D) 0.5
請附計算過程,謝謝!