What Does Concentration Ratios And The Herfindahl Index Measures?
What Does Concentration Ratios And The Herfindahl Index Measures? What does concentration ratios and the Herfindahl index measures? Concentration ratio of market concentration is usually measured as the sum of the market shares of four, eight or twelve largest companies in an industry. Herfindahl-Hirschman index of market concentration is expressed as the sum of squared