我對綠角的幾個看法 - 投資
By Quanna
at 2009-12-11T21:20
at 2009-12-11T21:20
Table of Contents
原文吃光光~先說聲抱歉!!
此篇的回應我覺的很棒,也學了很多東西,不過有個論點跟我所了解的有些差異,
在此提出討論,有錯還請指教。
就是好像大家都認同 "晚一年開始定期定額投資對長期沒什麼影嚮"的觀念。
但我記得複利之下會有很大的影嚮,所以用excel簡單算了一下..
假設我今年25歲開始投資,每月5000(亦即每年6萬)持續投資長達30年。假設每年
報酬率有8%,在其他條件不變下(不考慮通膨及費用支出..etc..),第30年(54歲)
會有 729.6萬。而若我選擇晚一年,也就是26歲才開始投資,則在54歲有669.5萬。
少了60萬掉,就因為我晚一年開始投資..
若本金加倍,比如每年投入12萬,則最後會少120萬;依此類推..
這樣的算法應該沒有錯才對,除非提此論點者的意思是晚一年開始也晚一年結束(期間
相同),那當然結果就一樣,不過人的壽命有限,若這筆是退休金的投資,則早點開
始就能早點退休,不是更好嗎?
ps:用8%年報酬率只是要說明複利的效果與威利,只是假設而已..
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投資
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