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2024-03-28 19:07這個知識點的辨析題錯了太多次了,請幫忙整理一下: 1、APT和CAPM假設(shè)分別是什么(完整的) 2、A和B分別出自課件的哪個章節(jié),請截圖給看一下相應(yīng)的知識點。 謝謝
所屬:FRM Part I > Foundations of Risk Management 視頻位置 相關(guān)試題
來源: 視頻位置 相關(guān)試題
1個回答
黃石助教
2024-04-02 11:13
該回答已被題主采納
同學(xué)你好。
CAPM假設(shè):
1. Access to information for all market participants, meaning that all information is freely available and instantly absorbed 【 投資者可以免費獲得所有可用信息 】
2. All market participants have the same expectations about the returns and risk for the same set of assets (i.e., the homogeneous expectations) 【同質(zhì)預(yù)期假設(shè),即投資者對于同一組資產(chǎn)的收益和風(fēng)險的預(yù)期全部都是相同的】
3. All market participants make their investment decisions based on the mean and variance of returns 【投資者使用均值方差分析框架】
4. No transaction costs, taxes, or other frictions 【市場無交易成本、無稅收以及其它市場摩擦】
5. Allocations can be made in an investment of any partial amount (i.e., the perfect divisibility assumption) 【資產(chǎn)無限可分,例如投資者可購買 0.1 股】
6. All participants can borrow and lend at a common risk free interest rate 【投資者可以按相同的無風(fēng)險利率借入或借出資金】
7. Any individual investor’s allocation decision cannot change the market prices (i.e., investors are “ price taker ” instead of price maker 【單個投資者的交易不會改變市場價格】
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追答
APT假設(shè):
1. Asset returns can be explained by systematic factors that affect all securities (i.e., all asset returns follow a factor structure) 【資產(chǎn)收益率可被系統(tǒng)性風(fēng)險因子所解釋】
2. There are a large number of securities, which allows (at least some) investors to construct and hold the well diversified portfolio 【市場上有足夠多的證券,使得至少部分投資者可以構(gòu)建并持有充分分散組合】
3. There are no arbitrage opportunities among well diversified portfolios 【充分分散組合之間不存在任何套利機會】 -
追答
至于A和B選項,這道題太老了很多內(nèi)容現(xiàn)在已經(jīng)不在原版書上了,參考意義不大,主要還是掌握兩個模型的假設(shè)。并且對于C選項,APT模型是不假設(shè)投資者風(fēng)險厭惡的,因為不管是風(fēng)險延誤/中性/偏好,投資者對于套利利潤都是一視同仁的,因為這筆利潤是無風(fēng)險的。
