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HECKSCHER-OHLIN MODEL: A model of international trade developed by Eli Heckscher and Bertil Ohlin, with significant contributions by Paul Samuelson, that relies on the notion that comparative advantage is based on relative natural resource endowments. A nation with large oil reserves will, for example, have a comparative advantage in oil production over another nation with fertile soil, which will have a comparative advantage in agricultural production.

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CONCENTRATION RATIOS

A family of measures of the proportion of total output in an industry that is produced by a given number of the largest firms in the industry. The two most common concentration ratios are for the four largest firms and the eight largest firms. The four-firm concentration ratio is the proportion of total output produced by the four largest firms in the industry and the eight-firm concentration ratio is proportion of total output produced by the eight largest firms in the industry. Concentration ratios are commonly used to indicate the degree to which an industry is oligopolistic and the extent of market control of the largest firms in the industry. A related measure is the Herfindahl index.

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Today, you are likely to spend a great deal of time at the confiscated property police auction wanting to buy either a birthday greeting card for your grandmother or a coffee cup commemorating yesterday. Be on the lookout for telephone calls from long-lost relatives.
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Ragnar Frisch and Jan Tinbergen were the 1st Nobel Prize winners in Economics in 1969.
"The only profit center is the customer."

-- Peter Drucker, educator

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