Measures of Market Concentration

Market Concentration Measurement of market concentration represents the degree to which the top companies in the industry make up the majority of the market, and in the automobile industry the top five UK companies make up nearly 90% of the market. . There are various ways to measure this, which will be explained in order. "Concentration rate is the ratio of total sales contributed by 3 to 5 companies in the market" (Maunder, P.

The Herfindahl-Hirschman Index (HHI) is a generally accepted measure of market concentration used by the Ministry of Justice for monopoly. Of this indicator, 2500 is considered to be concentrated. Current BCash is 2600 and Bitcoin is 2100. The initial amount of Bitcoin is 1050. This means that its concentration has doubled since the beginning of 2017. (See also Balaji Srinivasan for articles on quantitative decentralization). Bitcoin is like a sardine of Margin of Safety by hedge fund manager Seth Klarman. In the story of Claman, sardines disappeared from Monterey's traditional habitat in California, commodity dealers raised the price of sardines and raised the price. Then the buyer decided he wanted to eat an expensive meal for himself, then opened the can and ate it. He soon got sick and told the seller that the sardines were not good. The seller immediately answered: "You do not understand

The HHI score is used in the "highly concentrated" technical definition described in the article "Wall Street Journal". "HHI" is Herfindahl-Hirschman Index, which is an indicator of generally accepted market concentration. HHI is calculated by squaring the market share of each company competing in the market and summing up the resulting figures. Antitrust agencies usually think that HHI is moderately concentrated between 1,500 and 2,500 points, and we are considering a high concentration of HHI in excess of 2,500 points. The Internet search and search advertising market HHI is 7402. It is outside the chart. Since John Rockefeller's Standard Oil Trust, companies that dominate like Google are on the market.