Which of the following is not true about the Herfindahl-Hirschman Index (HHI)? Group of answer choices A value of 1 means perfect competition and a zero means monopoly. It is advantageous over the Concentration Ratio as a measure of competition in a market because it accounts for the distribution of market share across all firms in the market. A disadvantage compared to the Concentration Ratio is how much industry data is required to calculate it. It is advantageous over the Concentration Ratio because it applies higher weights for firms with more market power