金程問(wèn)答ST_model中,融合情況下,ρ應(yīng)該理解為相關(guān)性還是分散化呢?(完全獨(dú)立情況下,沒(méi)有分散化效果所以ρ=1),那分散化效果越差的話ρ應(yīng)該越高?在1小時(shí)05分的例題里他是更加fully-integrated,為何ρ變高了?
課后題R3第16題的scenario3該從哪些角度理解呢?謝謝
惡性通脹下持有的是貨幣市場(chǎng)工具不是貨幣對(duì)吧?因?yàn)樨泿艜?huì)貶值。
實(shí)體經(jīng)濟(jì)表現(xiàn)差,利率就低,這個(gè)是什么直接的邏輯關(guān)系?因?yàn)閷?shí)體經(jīng)濟(jì)差,貨幣需求少所以利率低對(duì)嗎?
老師好,R4第26題該怎么理解呢?謝謝
老師好,課后題R4第20題解題思路是啥呢?答案中“As prices adjust to a lower (higher) required return, the market should deliver an even higher (lower) return than was previously expected or required by the market.”這一句也沒(méi)看明白。謝謝
老師好,課后題R4第8題中提到的兩種approach完全沒(méi)啥概念, exchange rate預(yù)測(cè)課程中基本一掃而過(guò),想問(wèn)問(wèn)主要有哪些方法呢?如果是原版書的話可以再看看哪些部分呢?謝謝
reading3第16題的場(chǎng)景三麻煩老師解釋下,這個(gè)觀點(diǎn)好像不是三元悖論里的?
reading3 的第15題,這道題按照財(cái)政政策影響real rate作用在長(zhǎng)期,貨幣政策影響inflation作用在短期,很容易判斷出曲線變化為steep。但是看書上的答案解析,好像不是用的這個(gè)思路,我看說(shuō)貨幣政策對(duì)曲線的影響很清晰,而財(cái)政政策卻不是,還聊到了各種到期日的債券什么的,這個(gè)請(qǐng)老師講解下,或者說(shuō)就按照貨幣政策對(duì)長(zhǎng)短期影響的這個(gè)思路答題是否可以
reading 3 第14題。為什么the fund benefits from its cyclically low holdings of cash.經(jīng)濟(jì)緊縮,deflation的話,不是持有現(xiàn)金更好么??
Reading 3, Q14, 答案提到 asset-intensive & commodity producing firm will be negatively affected by falling inflation or deflation. ****** unable to pass along the price increase. 這里是不是最后寫反了? inflation higher,價(jià)格升高,asset intensive或者commodity producing firm可以 pass long price increase; 但是當(dāng)inflation reduce, 不能pass along price decrease?
老師,在講recessionhedge時(shí),課件中寫的是strong aggregate demand導(dǎo)致通脹,TP小,另一個(gè)老師的課件里寫的是因?yàn)樾枨髮?dǎo)致通脹時(shí)經(jīng)濟(jì)好,但本視頻中說(shuō)的是因recession導(dǎo)致長(zhǎng)期債收益率低,所以TP小,是不是相違背了
老師這一段什么意思As long as none of the factors used in a factor-based VCV model are redundant and none of the asset returns are completely determined by the common factors, there will not be any portfolios that erroneously appear to be riskless. Therefore, a factor-based VCV matrix approach may result in some portfolios that erroneously appear to be riskless if any asset returns can be completely determined by the common factors or some of the factors are redundant.
2. 老師好,PPP:不同地方貨品價(jià)值應(yīng)該一樣,real rate 一樣,所以inf(d)>inf(f),會(huì)導(dǎo)致 e(1)>e(0) 然后本幣貶值 uip:nominal int 越高,然后貶值? 不是應(yīng)該利率越高大家涌進(jìn)來(lái),導(dǎo)致升值嗎? 另外 課后題有一題老師好,Short-term (1-month) government rate 上升 導(dǎo)致這個(gè)國(guó)家貨幣變強(qiáng),這個(gè)gov rate 指的是 nominal int ?
老師好,這句話怎么理解high-frequency data improves the precision of sample variances, covariances, and correlations but not the precision of the sample mean
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