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# economy

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Four firms control the market for a particular good, resulting in an HHI of 2,900. Total industry sales are \$500, and it is known that two firms each have sales of \$175. If each of the remaining two firms have the same sales, then we can conclude that the remaining two firms each have a market share of:

we got 0.15 how

off-topic
Guest Nov 19, 2017
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#1
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anyone

Guest Nov 19, 2017
#2
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\$175 x 2 =\$350 combined share of 2 companies

\$500 - \$350 =\$150 combined share of other 2 companies.

\$175 /\$500 =35% share of one company

35% x 2 =70% share of 2 companies

\$150/2 =\$75 share of one of the remaining 2 companies

\$75/\$500 =15% percentage share of one of the remaining companies. So that:

15% x 2 =30% percentage share of the two remaining companies.

So that: 35%^2 + 35%^2 + 15%^2 + 15%^2 =0.29  HH Index.

Guest Nov 19, 2017
edited by Guest  Nov 19, 2017
#3
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thankk you

Guest Nov 19, 2017

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