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Cherry · 2024年04月21日

套利一定是卖空吗

NO.PZ2023041003000005

问题如下:

Jacob wants to understand more about the carry arbitrage approach to valuation and, as part of the discussion, Fourie describes the two fundamental rules for the arbitrageur:

Rule 1 The arbitrageur never uses her own money to purchase the underlying security and always invests any proceeds from short selling transac­tions at the risk-free rate.

Rule 2 The arbitrageur does not take any market price risk on the total trade, but individual components of the trade may involve price risk.

Are Fourie’s comments regarding fundamental rules for arbitrageurs most likely correct?

选项:

A.

No, Rule 1 is incorrect

B.

Yes

C.

No, Rule 2 is incorrect

解释:

Fourie’s fundamental rules for arbitrageurs are correct. The two fundamental rules of the arbitrageur are (a) do not use your own money and (b) do not take any price risk. The arbitrageur does not spend proceeds from short selling transactions but invests them at the risk-free rate. The arbitrageur does not take market price risk, even though each step of the transaction may individually involve price risk. Because the steps are undertaken simultaneously, however, the price risk is offset.

A is incorrect. The arbitrageur does not use their own money. Also, they do not spend proceeds from short selling transactions but invests them at the risk-rate.

C is incorrect. The arbitrageur does not take market price risk but component trans­actions may individually involve price risk.

陈述1里面always proceed from short selling transactions 这里对吗 套利可以作long方也可以作short方吧 此处写的总是在卖空 这个点没有错吗?感谢老师~

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李坏_品职助教 · 2024年04月21日

嗨,从没放弃的小努力你好:


陈述1完整的意思是:套利者从不会用自己的资金去购买基础资产,并且,如果因为做空而得到了钱,这笔钱一定会以无风险利率进行投资获得收益。


并不是说套利必须是做空,而是说如果有做空获得的钱,这笔钱会被投资者拿去收取无风险利息。

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就算太阳没有迎着我们而来,我们正在朝着它而去,加油!

Cherry · 2024年04月21日

明白了 谢谢老师吼~

李坏_品职助教 · 2024年04月21日

嗨,从没放弃的小努力你好:


同学加油加油~~

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加油吧,让我们一起遇见更好的自己!

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NO.PZ2023041003000005 问题如下 Jacob wants tounrstanmore about the carry arbitrage approato valuation an part ofthe scussion, Fourie scribes the two funmentrules for the arbitrageur:Rule 1 Thearbitrageur never uses her own money to purchase the unrlying security anlways invests any procee from short selling transac­tions the risk-freerate.Rule 2 Thearbitrageur es not take any market pririsk on the tottra, but invialcomponents of the tra minvolve pririsk.Are Fourie’scomments regarng funmentrules for arbitrageurs most likely correct? A.No, Rule 1 is incorre B.Yes C.No, Rule 2 is incorre Fourie’sfunmentrules for arbitrageurs are correct. The two funmentrules ofthe arbitrageur are ( not use your own money an( not take any pricerisk. The arbitrageur es not spenprocee from short selling transactionsbut invests them the risk-free rate. The arbitrageur es not take marketpririsk, even though eastep of the transaction minvially involvepririsk. Because the steps are unrtaken simultaneously, however, the pricerisk is offset.A is incorrect.The arbitrageur es not use their own money. Also, they not spenproceefrom short selling transactions but invests them the risk-rate.C is incorrect.The arbitrageur es not take market pririsk but component trans­actions mayinvially involve pririsk. 第一个说法的后半句always invests any procee from short selling transac­tions the risk-free rate. 未必是正确的吧?例如一个资产在两个市场价格不等,卖空高价资产后,可以买入低价资产进行套利,而不是去投资一个无风险收益率的资产啊。 麻烦老师一下,谢谢!

2024-03-20 12:42 1 · 回答