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- 注册时间
- 2011-7-11
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- 2013-9-11
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if HHI is more than 1800, it is controled by few companies, if we remove the percentage, does it mean if HHI>0.18, industry is controled by few.
if HHI=0.15, does it mean we have SQRT(1/0.15 )=2 equal size companies? |
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