書上價格彈性看不懂 - 經濟
By Elvira
at 2018-01-10T15:52
at 2018-01-10T15:52
Table of Contents
想請問書上這個圖
旁邊的算式是怎麼來的..
不管是弧ab還是弧cd我都不懂..
弧彈性公式的分子不是
數量的變動量除以變動前後的數量和
分母則是 價格變動量除以變動前後的價格合嗎 還是我哪裡錯了 ._. ....
https://i.imgur.com/CtoAzjU.jpg
--
旁邊的算式是怎麼來的..
不管是弧ab還是弧cd我都不懂..
弧彈性公式的分子不是
數量的變動量除以變動前後的數量和
分母則是 價格變動量除以變動前後的價格合嗎 還是我哪裡錯了 ._. ....
https://i.imgur.com/CtoAzjU.jpg
--
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