很多學者分析過曆史數據。80%的時候，投資者一次性、當下全部買進取得的效果，好過分批買進。

來源: 矽穀居士於 2023-11-13 11:33:03 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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