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天天 · 2023年07月08日

汽车价格的升高和利率模型有撒关系?

NO.PZ2020033001000068

问题如下:

An unexpected short-term increase in high-priced luxury automobiles is just reported by the Bureau of Labor Statistics. Which of the following most accurately describes an anticipated impact on a mean-reverting model of interest rates?

选项:

A.

The economic information would last long and mean-reversion parameter would be low.

B.

The economic information would not last long and mean-reversion parameter would be low.

C.

The economic information would last long and mean-reversion parameter would be high.

D.

The economic information would not last long and mean-reversion parameter would be high.

解释:

D is correct.

考点:mean-reversion

解析:

题目中提到了这个变化是short-term,预计短期就会恢复到均值水平。同样的变化,回归到均值的时间越短,必然这个回归均值的速度的值就很大,即high mean-reversion parameter.

不懂题干的关系啊啊啊啊啊

1 个答案

pzqa27 · 2023年07月10日

嗨,从没放弃的小努力你好:


题目重点是在说车企的利率上升这个事,请不要拐到车价上去。当利率出现上涨的时候,因为这是短期利率,那么回归均值的速度也势必比较快,所以是high mean-reversion parameter.

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