The purpose of this paper is to summary the literatures on tests of portfolio mean-variance efficiency in the framework of classical statistics and Bayesian inference.

评述了应用经典统计学和贝叶斯推断检验资产组合均值方差有效性的文献，提出了这些方法在我国应用-的可能性。

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An asset class must pass all three tests to be included in a portfolio.

FORBES: How to Pick Asset Classes

Alternatively, their teachers can submit results from national curriculum tests, while the children compile a portfolio to demonstrate their all-round creative and intellectual skills.

BBC: Bringing on the brightest

Nothing tests the mettle of a value investor like watching a large portfolio holding slowly and steadily melt down.

FORBES: Two Celebrated Investors Want To Fix Their Funds--And Chesapeake Energy