What is the meaning of a four firm concentration ratio of 60 percent

What is the meaning of a four firm concentration ratio of 60 percent

What is the meaning of a four firm concentration ratio of 60 percent 90 percent from acg 2021 at miami dade college, miamiSuppose that the five firms in industry a have annual sales of 30, 30, 20, 10 and 10 percent of total industry sales.A concentration ratio (cr) is a metric used in economics to express the distribution of companies in a particular industry relative to the size of the market.The hhi of the top four firms is calculated as follows:Which of the following is a shortcoming of concentration ratios as measures of monopoly power?

The terms industry concentration ratio and market concentration ratio are sometimes used.The combined market share of the four largest firms in a particular industry expressed as a percentage.

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