Market timing can be difficult, but I suspect some degree of it will increasingly be worked into endowment-allocation models.

择时操作并非易事，但我推测这种做法会越来越多地进入到基金会的配置模式中。

youdao

Assumptions about investor risk tolerance implied in age-based asset allocation models are just plain wrong.

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For ideas on how to construct a diversified portfolio, visit the Asset Allocation Models page on AAII.com.

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The results of tactical asset allocation models recommended by the major brokerage firms are regularly published in the Journal.

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