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v2.1 · 2023年08月13日

No.PZ202209060200004006 来源: Handbook Of the differences between

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NO.PZ202209060200004006

问题如下:

Of the differences between a laddered strategy for fixed-income portfolios and bullet and barbell strategies described by Honanie, which is least likely correct?

选项:

A.Difference 3 B.Difference 2 C.Difference 1

解释:

Solution

C is correct. Given the same value and duration, of the three types, the bullet portfolio would have the lowest convexity and the barbell portfolio would have the highest. The laddered portfolio would have a convexity in between the two.

A is incorrect because the laddered portfolio would regularly buy new long-term securities to replace maturing securities on the short end. To the extent interest rates are volatile, the laddered portfolio would eventually contain a mixture (diversity) of high- and low-yielding securities.

B is incorrect because the laddered portfolio would always have some securities with little time remaining before maturity. These would be good collateral for a repo or loan or would shortly turn into cash (upon maturity), thus providing high liquidity.

No.PZ202209060200004006

来源: Handbook

Of the differences between a laddered strategy for fixed-income portfolios and bullet and barbell strategies described by Honanie, which is least likely correct?

您的回答C, 正确答案是: C

A

Difference 3

B

Difference 2

C

正确Difference 1

数据统计(全部)

做对次数: 154

做错次数: 12

正确率: 92.77%

数据统计(个人)

做对次数: 1

做错次数: 0

正确率: 100.00%

解析

Solution

C is correct. Given the same value and duration, of the three types, the bullet portfolio would have the lowest convexity and the barbell portfolio would have the highest. The laddered portfolio would have a convexity in between the two.

A is incorrect because the laddered portfolio would regularly buy new long-term securities to replace maturing securities on the short end. To the extent interest rates are volatile, the laddered portfolio would eventually contain a mixture (diversity) of high- and low-yielding securities.

B is incorrect because the laddered portfolio would always have some securities with little time remaining before maturity. These would be good collateral for a repo or loan or would shortly turn into cash (upon maturity), thus providing high liquidity.

请问下difference3 这个diversification这个怎么理解?

ladder的diverdification更好吗?

1 个答案

pzqa015 · 2023年08月14日

嗨,努力学习的PZer你好:


这道题说的不准确

准确的说法应该是dispersion,而不是diversification

Diversification与dispersion是两个概念哈。

Diversification英文译为“分散化”,一般用来描述组合风险的情况,与资产间相关系数ρ相关,两个资产的ρ越大,我们说它们的diversification效果越差。反之,diversification效果越好。

dispersion是现金流的分散程度。

我们提到laddered portfolio,一般是说dispersion而不是diversification哈。

对于laddered portfolio dispersion,一般是与barbell、bullet来比较。有个结论同学记住:

在duration相同的情况下:dispersion:barbell>laddered>bullet

我们可以用公式证明一下。


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