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NET EXPORTS OF GOODS AND SERVICES: The official item in the National Income and Product Accounts maintained by the Bureau of Economic Analysis measuring net exports by the foreign sector. Net exports of goods and services is the smallest of the four expenditures, averaging around 2% of gross domestic product. Unlike the other expenditures, net exports of goods and services can be either positive or negative. They are positive when exports are greater than imports and negative when exports are less than imports. In recent years, net exports of goods and services have been negative.

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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 watching the shopping channel hoping to buy either car battery jumper cables or a dozen high trajectory optic orange golf balls. Be on the lookout for mail order catalogs with hidden messages.
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There were no banks in colonial America before the U.S. Revolutionary War. Anyone seeking a loan did so from another individual.
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