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2. Four firms control the market for a particular good, resulting in an HHI of 6,650. Total industry sales $1,750, and it is
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Answer #1

2) share of the sale of the first firm= (1400/1750)*100=80%

share of the sale of the second firm=(175/1750)*100=10%

let the share percentage of the remaining two firms is x

HHI=6650=(80)^2 + (10)^2 + x^2 + x^2

6650=6400+100+2X^2

150=2x^2

x=8.66

therefore the market share of the remaining two firms is 8.66%

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