HHI的计算方法

NO.PZ2023010401000056

问题如下：

Which of the following statements concerning the Herfindahl–Hirschman Index (HHI) is most accurate?

选项：

A.The HHI is a useful measure of potential barriers to entry.

B.An HHI of 0.05 would be analogous to having the market shared equally by 20 firms.

C.The HHI is usually unaffected by mergers among the top market incumbents.

解释：

If there are M firms in the industry with equal market shares, the HHI equals 1/M. With 20 firms having equal shares, the HHI = 1/20 = 0.05.

中文解析：

如果行业中有M家公司拥有相等的市场份额，则HHI等于1/M。如果20家公司的股份相等，HHI = 1/20 = 0.05。

这道题和54题计算HHI的方法是不是有点冲突？54题就是直接去掉百分号计算的吧

添加评论

0 个答案

0
回答
0
关注
5
浏览

我要回答关注问题

相关问题

NO.PZ2023010401000056 问题如下 Whiof the following statements concerning the Herfinhl–HirschmInx (HHI) is most accurate? A.The HHI is a useful measure of potentibarriers to entry. B.HHI of 0.05 woulanalogous to having the market shareequally 20 firms. C.The HHI is usually unaffectemergers among the top market incumbents. If there are M firms in the instry with equmarket shares, the HHI equals 1/M. With 20 firms having equshares, the HHI = 1/20 = 0.05. 中文解析如果行业中有M家公司拥有相等的市场份额，则HHI等于1/M。如果20家公司的股份相等，HHI = 1/20 = 0.05。不是说要把百分号去掉再计算吗？那就应该是5^2*20=500啊？

2024-08-11 16:28 3 · 回答

NO.PZ2023010401000056 问题如下 Whiof the following statements concerning the Herfinhl–HirschmInx (HHI) is most accurate? A.The HHI is a useful measure of potentibarriers to entry. B.HHI of 0.05 woulanalogous to having the market shareequally 20 firms. C.The HHI is usually unaffectemergers among the top market incumbents. If there are M firms in the instry with equmarket shares, the HHI equals 1/M. With 20 firms having equshares, the HHI = 1/20 = 0.05. 中文解析如果行业中有M家公司拥有相等的市场份额，则HHI等于1/M。如果20家公司的股份相等，HHI = 1/20 = 0.05。 C为什么不对啊，N-firm concentration ratio才是对兼并不敏感啊

2023-08-11 22:46 1 · 回答

2023-08-08 00:08 2 · 回答