Re: 關於 IRR內部報酬率 - 保險
![Kumar avatar](/img/girl.jpg)
By Kumar
at 2012-01-07T01:06
at 2012-01-07T01:06
Table of Contents
有點久之前的文章了...剛剛爬文看到的
看完一系列文章之後還是有點小疑惑,因為跟我自己以前學的有點差異
我以前學到的IRR定義就是:NPV=0時所算出來的折現值
然後這個折現值剛好會等於你的投資報酬率
舉個例子,今年初投入10萬,明年初回收11萬
令NPV=0 → -10 + 11/(1+r) = 0 → r=10%
這個意義不就只是,你今年投入10萬明年獲利11萬,報酬率就是10%嗎?
其實我也不太懂為什麼會跟再投資扯再一起@@
ps.
全部看完之後,其實還是不太知道IRR到底為什麼要叫做內部報酬率@@
報酬率就報酬率,前面幹麻還要加個內部咧@@?
--
看完一系列文章之後還是有點小疑惑,因為跟我自己以前學的有點差異
我以前學到的IRR定義就是:NPV=0時所算出來的折現值
然後這個折現值剛好會等於你的投資報酬率
舉個例子,今年初投入10萬,明年初回收11萬
令NPV=0 → -10 + 11/(1+r) = 0 → r=10%
這個意義不就只是,你今年投入10萬明年獲利11萬,報酬率就是10%嗎?
其實我也不太懂為什麼會跟再投資扯再一起@@
ps.
全部看完之後,其實還是不太知道IRR到底為什麼要叫做內部報酬率@@
報酬率就報酬率,前面幹麻還要加個內部咧@@?
--
Tags:
保險
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at 2012-01-11T15:57
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