total capacity or total reserves) in a market. Market concentration is the portion of a given market's market share that is held by a small number of...

economics, concentration ratios are used to quantify market concentration and are based on companies' market shares in a given industry. A concentration ratio...

such as concentration ratios, the Herfindahl-Hirschman index and the Lerner index, regulators are able to oversee and attempt to restore market competitiveness...

argued market concentration among media—whether driven by domestic or foreign investors—should be "closely monitored" because "Horizontal concentration may...

level of industry concentration has caused concern, and a desire among some in the investment community for the UK's Competition & Markets Authority (CMA)...

threshold then economists will consider the market to have a high concentration (e.g. market X's concentration is 0.142 or 14.2%). This threshold is considered...

Market concentration - Market concentration, though it usually has only a minor effect, can still work against new entrants. Seller concentration -...

measure of market structure. This gives the combined market share of the N largest firms in the market. For example, if the 5-firm concentration ratio in...

a whole. One commonly used concentration ratio is the four-firm concentration ratio, which consists of the combined market share of the four largest firms...

From World War II until the 1970s, the Brandeisian view that high market concentration leads to anticompetitive behavior was sometimes called the Harvard...