Phyllis
2020-10-18 06:02請(qǐng)問(wèn)老師,百題第三題是什么意思?以及B risk is factor exposure具體是如何理解的?(還有就是 風(fēng)險(xiǎn)是敞口?但是請(qǐng)問(wèn)不管風(fēng)險(xiǎn)種類(lèi)嗎?)
所屬:FRM Part II > Risk Management and Investment Management 視頻位置 相關(guān)試題
來(lái)源: 視頻位置 相關(guān)試題
1個(gè)回答
Cindy助教
2020-10-20 15:09
該回答已被題主采納
同學(xué)你好,這道題問(wèn)的是下面關(guān)于CAPM模型的假設(shè), 哪一個(gè)是在真實(shí)世界中和在理論中都是有用的
A. Information is costless and available to all investors: technology has reduced information friction to roughly zero
信息對(duì)所有投資者來(lái)說(shuō)都是免費(fèi)的:技術(shù)將信息摩擦減少到幾乎為零,這個(gè)一看就是錯(cuò)的,技術(shù)并沒(méi)有將信息摩擦減少到幾乎為零的狀態(tài)
B. Risk is factor exposure: The risk of an individual asset is measured in terms of the factor exposure of that asset
這個(gè)選項(xiàng)的意思就是我們承擔(dān)的風(fēng)險(xiǎn)大小取決于我們暴露的風(fēng)險(xiǎn)敞口,敞口越大,風(fēng)險(xiǎn)就越大,這句話是對(duì)的
C. Investors have mean-variance utility: asset owners care only about means (which they like) and variances (which they dislike)
這是說(shuō)投資者只關(guān)心均值和方差,這個(gè)在真實(shí)世界中是不成立的,不可能只關(guān)心這兩個(gè)維度的
D. Investors have homogeneous expectations: investors have identical expectations with respect to the necessary inputs into the portfolio decision
投資者具有相同的預(yù)期,這個(gè)一看也是錯(cuò)的,不同投資者之間不可能具有相同的預(yù)期的,
