基于风险价值不能准确度量风险以及缺乏次可加性。

Valve at Risk is unable to measure the risk exactly and lack of subadditive.

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一个简单的例子揭示了现有的加权平均资本成本(WACC)计算公式违背了价值的可加性原理。

A simple example reveals that the existing weighted average cost of capital (WACC) formula for valuation conflicts with the principle of value additivity.

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基于风险价值不能准确度量风险以及缺乏次可加性这些缺点，目前国际上有人提出用损失期望值来测量风险。

At last, as valve at Risk is unable to measure the risk exactly and lack of subadditive , therefore, it is suggested in the international that Expected shortfall should be used to measure risk.

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