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花卷喵 · 2021年10月17日

关于challenge和possible challenge

* 问题详情,请 查看题干

NO.PZ201601200500004506

问题如下:

6. If HiFly and Sky Systems attempt to merge, the increase in the Herfindahl–Hirschman Index (HHI) and the probable action by the Department of Justice and the FTC, respectively, in response to the merger announcement are:

选项:

Increase in the HHI
Probable Response of Department of Justice and FTC
A.
290
To challenge the merger
B.
290
To investigate the merger
C.
400
To challenge the merger

解释:

C is correct.

The pre- and post-merger HHI measures are 1,550 and 1,950, respectively. Not only is the HHI increasing by 400 points, but the industry concentration level also moves from moderately to highly concentrated. The probable action by the regulatory authorities is thus a challenge.

请问HHI的变化大于50是challenge,变化更大的时候,大于100却是possible,这该怎么理解?为什么不是变化值越大越challenge?

1 个答案

lynn_品职助教 · 2021年10月22日

嗨,爱思考的PZer你好:


政府是否采取措施,先看并购后HHI的数值处于什么位置,再看并购前后HHI变化的幅度,见下图:

同学提到的大于50是challenge,是在HHI>1800,市场集中度非常高的情况下,所以政府当然要challenge啦。

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虽然现在很辛苦,但努力过的感觉真的很好,加油!