this outperformance does not persist, and most small investors using active fund managers tend to turn over their mutual funds for this reason once every several years, generating more unnecessary capital gains and resultant taxes.
主動管理式基金因為outperformance不會持續，所以每隔幾年就要買賣一次造成週轉率增加，使得不必要的資本利得的支出以及稅務負擔
