If voters do not have single-peaked preferences then a cyclical majority will arise

The table above lists the market shares of the twenty makers of personal computers. Based upon the Herfindahl-Hirschman Index

A) the industry is an oligopoly. B) the industry is a monopoly. C) the industry is competitive. D) the firms in the industry will not be allowed to merge.

Using the market shares in the table above, if Big W wants to buy Widgette, the Federal Trade Commission will probably

A) approve the merger because the industry is moderately concentrated and the increase in the Herfindahl-Hirschman index (HHI) is small enough. B) block the merger because the industry is moderately concentrated (HHI between 1,500 and 2,500 ) and the increase in the HHI is too much. C) approve the merger because the industry is highly concentrated (HHI exceeds 2,500 ) but the increase in the HHI is small enough. D) block the merger because the industry is highly concentrated (HHI exceeds 2,500 ) and the increase in the HHI is too much.