... expected standard cost 期望标准成本 expected-cost criterion 预期费用准则 expected Punishment cost 成本 ...
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actual expected standard cost [会计] 实际预期标准成本 ; 实际预算标准成本
expected actual standard cost [会计] 预期实际标准成本
The material price variance measures the difference between the actual cost of material and the standard cost expected to be paid for the material.
材料的价格差异是材料的实际价格与预期的标准价格之间的差额。
So, the optimal thing to do if you live in a world like this n is to get n as large possible and you can reduce the standard deviation of the portfolio very much and there's no cost in terms of expected return.
如果现实中也这样简单的话,那么你就尽量增大,这样就能让投资组合的标准差,就会大大降低,从预期收益率的角度来看,这样做的成本是零。
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