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FOREIGN EXCHANGE: Any financial instrument that gives one country a claim on the currency of another country and which is used to make payments between countries. The most important type of foreign exchange is currency itself, that is, the currency of other countries. However foreign exchange also includes things like bank checks and "bills of exchange" (a sort of contract that's paid for with the currency of one nation that can be then traded for the currency of another country).

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MARGINAL COST

The change in total cost (or total variable cost) resulting from a change in the quantity of output produced by a firm in the short run. Marginal cost (MC) indicates how much total cost changes for a given change in the quantity of output. Because changes in total cost are matched by changes in total variable cost in the short run (total fixed cost is fixed), marginal cost is the change in either total cost or total variable cost. It is found by dividing the change in total cost (or total variable cost) by the change in output. Marginal cost is one of four cost concepts used in short-run production analysis. The other three are average total cost, average fixed cost, and average variable cost.

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RED AGGRESSERINE
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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius wanting to buy either a remote controlled World War I bi-plane or a wall poster commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki. Be on the lookout for fairy dust that tastes like salt.
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The first U.S. fire insurance company was established by Benjamin Franklin in 1752 in Philadelphia.
"Don't judge each day by the harvest you reap, but by the seeds you plant."

-- Robert Louis Stevenson, Author

OAS
Organization of American States
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