1 1) (12 points) Assume an industry has 18 firms. Top two firms have the market share 10 percent each and rest of the sixteen firms have market shares 5 percent each. a) Herfindahl index in this industry is equal to 102 + 102+ 16 100 + 100 + 16 - b) Four-firm concentration ratio in this industry is equal to 30 10+ 10 + 5 + 5 7 c) This industry is classified as oligoplight at moul syeds out'll Cinlog S) ta