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EIGHT-FIRM CONCENTRATION RATIO: The proportion of total output in an industry that's produced by the eight largest firms in the industry. This is one of two common concentration ratios. The other is the four-firm concentration ratio. The eight-firm concentration ratio is commonly used to indicate the degree to which an industry is oligopolistic and how market control is held by the eight largest firms in the industry.

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ECONOMIC EFFICIENCY

Obtaining the most consumer satisfaction from available resources. In other words, resources are allocated in such a way that consumer satisfaction is at its highest possible level. This is also termed either efficiency or allocative efficiency.

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Today, you are likely to spend a great deal of time looking for a downtown retail store wanting to buy either decorative picture frames or storage boxes for your income tax returns. Be on the lookout for celebrities who speak directly to you through your television.
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