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PHYSICAL CAPITAL: The synthetic resources used to produce goods and services. Capital is a factor of production that has been previously produced. Unlike other types of material items, capital does not become a part of the product. This should be compared with financial capital and human capital.

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FOUR-FIRM CONCENTRATION RATIO

The proportion of total output in an industry produced by the four largest firms in an industry. This is one of two common concentration ratios. The other is the eight-firm concentration ratio. Another related measure is the Herfindahl index. The four-firm concentration ratio is commonly used to indicate the degree to which an industry is oligopolistic and the extent of market control held by the four largest firms in the industry.

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Today, you are likely to spend a great deal of time flipping through the yellow pages wanting to buy either hand lotion, a big bottle of hand lotion or a lighted magnifying glass. Be on the lookout for broken fingernail clippers.
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Mark Twain said "I wonder how much it would take to buy soap buble if there was only one in the world."
"Believe one who has tried it. "

-- Virgil, Roman poet

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