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和棋 · 2021年03月31日

这个答案的意思是EE和EPE到底能不能衡量roll-over risk呢?

NO.PZ2019100902000013

问题如下:

Which of the following statements is incorrect?

选项:

A.
Maximum PFE: simply represents the highest PFE value over a given time interval, thus representing the worst-case exposure over the entire interval.
B.

Expected positive exposure (EPE): is defined as the average expected exposure across all time horizons.

C.

Negative exposure: being represented by negative future values. This will obviously represent the exposure from a counterparty’s point of view.

D.

measures such as EE and EPE can capture properly “roll-over risk”.

解释:

答案:D is correct.

解析:注意,本题让选的是错误的一项。A/B/C三个选项描述正确,D选项描述错误。

EE 和 EPE存在缺陷,他们可能会低估短期交易里的Exposure(underestimate exposure for short-dated transactions),并且正确的衡量到Roll-over risk。

为了解决EE和EPE的问题,我们就引入了effective EE and effective EPE

这个答案的意思是EE和EPE到底能不能衡量roll-over risk呢?

1 个答案

小刘_品职助教 · 2021年04月01日

同学你好,

不好意思答案说得不太好,应该是EE和EPE低估了短期交易风险,同时也不能正确衡量Roll-over risk,所以引入了effective EE and effective EPE