The index that the U.S. government currently uses to determine whether a merger should be allowed is the four-firm concentration ratio.
What is the Herfindahl index ?
Under what conditions will the government approve a merger?
If the government believes that a merger will result in lower prices, more dependable goods and services, and a more efficient industry, it will be approved.
What is FTC approval?
Learn more about Herfindahl index
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