The most vocal critic of ETFs is John Bogle, Vanguard's former boss.

ETF最严厉的批评者是John Bogle，先锋集团的前老总。

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Vanguard founder John Bogle suggests8% a year as a reasonable return.

先锋公司创始人约翰·格尔建议，8%年回报率是比较合理的。

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Vanguard founder John Bogle suggests 8% a year as a reasonable return.

先锋公司创始人约翰·博格尔建议，8%的年回报率是比较合理的。

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John Bogle, founder of the Vanguard Group, published his first book in late 1994.

FORBES: Why I Index by Rick Ferri

John Bogle, the founder of the Vanguard Investment Group, champions the passive, or index, approach to investment.

ECONOMIST: Can you beat the blindfolded monkey?

John Bogle, founder of Vanguard, uses different data to make the same point.

FORBES: IPO Winter