Industry A has market shares of 50, 30, and 20. Industry B has market shares of 45, 40, and 15. Hint: HHI = ? (si2), where si is the market shares of the i-th firm in the industry. The Herfindahl index for A is 100. The Herfindahl index for A is 3,800. The Herfindahl index for B is 3,600 The Herfindahl index for A is greater than for B. The Herfindahl index is for B is 4,000.