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發(fā)布時(shí)間:2021-06-02 09:33編輯:融躍教育FRM
備考FRM的考生都知道,F(xiàn)RM考生要掌握不僅要掌握教材的知識(shí),還需要對(duì)一些習(xí)題的練習(xí)必不可少。尤其是近幾年的練習(xí)題,不僅可以了解考試的重難點(diǎn)在哪里,而且在做題的過程中也能查漏補(bǔ)缺!
Which statement about risk control in portfolio construction is correct?
A) Quadratic programming allows for risk control through parameter estimation but generally requires many more inputs estimated from market data than other methods require.》》》戳:免費(fèi)領(lǐng)取FRM各科視頻講義+歷年真題+21年原版書(PDF版)
B) The screening technique provides superior risk control by concentrating stocks in selected sectors based on expected alpha.
C) When using the stratification technique, risk control is implemented by overweighting the categories with lower risks and underweighting the categories with higher risk.
D) When using the linear programming technique, risk is controlled by selecting the portfolio with the lowest level of active risk.
答案:A 【資料下載】FRM一級(jí)思維導(dǎo)圖PDF版
解析:Quadratic programming requires many more inputs than other portfolio construction techniques because it entails estimating volatilities and pair-wise correlations between all assets in a portfolio. Quadratic programming is a powerful process, but given the large number of inputs it introduces the potential for noise and poor calibration given the less than perfect nature of most data.
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