岳同学2020-02-03 16:32:17
請問可以解釋原版書 Reading 20 課後題 Q23. C 選項這段話嗎? "Inter-market carry trades do not, in general, break even if each yield curve goes to its forward rates. Intra-market trades will break even if the curve goes to the forward rates because, by construction of the forward rates, all points on the curve will earn the “first-period” rate (that is, the rate for the holding period being considered). Inter-market trades need not break even unless the “first-period” rate is the same in the two markets. If the currency exposure is not hedged, then breaking even also requires that there be no change in the currency exchange rate."
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Chris Lan2020-02-03 19:07:59
同学你好
carry trade套息的本质就是forward bias,如果利率向forward rate收敛,就意识着没有forward bias,因此这种情况下无利可图,也就盈亏平衡了。但这是针对intra-market而言。如果是换成inter-market,那存在了另一个不确定因素,那就是汇率。如果起初和期末的汇率不同,即使利率向forwad rate收敛,由于汇率可能会变化,即使没有forwad rate bias,也会因为汇率的变化,而导致无法盈亏平衡。
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請問中間提到的 first-period rate 是指 兩條 curve 在同一時間內的 return嗎?
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另外,請問文中說到的 forward rate 是指 interest rate 還是只 exchange rate?
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同学你好
first-period 这个关键词在原版书中,只在本题的解答中出现过,根据字面的理解,应该就是持有期的return要保持一致。
另外forware rate在这里是指远期利率,因为他只有假设汇率不变的情况下才能盈亏平衡,所以汇率是不会变化的,因此只能是远期利率。


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