Market Concentration and Industry Power

This section groups terms used to measure or describe market power and industry concentration.

It helps readers interpret concentration, concentration ratios, seller concentration, and N-firm concentration ratios.

In this section

• Concentration Ratio: Understanding Market Dominance
  The concentration ratio measures the proportion of sales provided by the largest firms in an industry, often highlighting the degree of market power held by those firms.
• Concentration: Market Dominance by Few Firms
  Concentration refers to the extent to which a market is dominated by a limited number of firms. Key measurements include the N-firm concentration ratio and the Herfindahl index. Also related to export concentration.
• N-Firm Concentration Ratio: Measure of Market Concentration
  The N-Firm Concentration Ratio is the proportion of total market output produced by the N largest firms in an industry, used to measure the degree of monopolization.
• Seller Concentration: Market Dynamics and Analysis
  An in-depth exploration of seller concentration, its measurement, implications in various industries, historical context, and related economic concepts.