The Herfindahl Index Is Obtained by

The Herfindahl index is obtained by

A) adding the squares of the market shares of each firm in the industry.
B) adding the market shares of the largest four firms in the industry.
C) finding the difference between the squares of the market shares of each firm in the industry.
D) finding the difference between the market shares of each firm in the industry.
E) none of the above