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You are the manager in a market composed of 21 firms, each of which has a 4.76 percent market share. In addition, each firm h

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Answer #1

a) Answer is 475.81

HHI = sum of Square of market share of each firm

= (4.76^2 )* 21 = 22.6576*21 = 475.8096

b) Answer is 521.12

HHI = (9.52^2 ) + (4.76^2)*19 = 90.6304 + 430.4944 = 521.1248

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