The target-date funds which are claiming a growing share of 401(k) dollars use a similar system to determine asset allocation, only a date in the future is used rather than age.

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Fund companies that manage target-date funds assume that young people will pick a faraway date where the allocation to equity is always very high.

FORBES: A Fighter Pilot's View Of Age-Based Asset Allocation

The simplest method of help is through asset allocation funds like balanced and target date funds.

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