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DIAMOND-WATER PARADOX: The perplexing observation that water, which is more useful than diamonds, has a lower price. If price is related to utility, how can this occur? This paradox was first proposed by classical economists in the 19th century and was subsequently used as a stepping stone for developing the notion of marginal utility and the role it plays in the demand price of a good. The paradox is magically cleared up with an understanding of marginal utility and total utility. People are willing to pay a higher price for goods with greater marginal utility. As such, water which is plentiful has enormous total utility, but a low price because of a low marginal utility. Diamonds, however, have less total utility because they are less plentiful, but a high price because of a high marginal utility.
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MARGINAL REVENUE, PERFECT COMPETITION The change in total revenue resulting from a change in the quantity of output sold. Marginal revenue indicates how much extra revenue a perfectly competitive firm receives for selling an extra unit of output. It is found by dividing the change in total revenue by the change in the quantity of output. Marginal revenue is the slope of the total revenue curve and is one of two revenue concepts derived from total revenue. The other is average revenue. To maximize profit, a perfectly competitive firm equates marginal revenue and marginal cost.
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RED AGGRESSERINE
[What's This?]
Today, you are likely to spend a great deal of time driving to a factory outlet looking to buy either any book written by Isaac Asimov or a how-to book on building remote controlled airplanes. Be on the lookout for defective microphones.
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In the Middle Ages, pepper was used for bartering, and it was often more valuable and stable in value than gold.
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"Difficulty is the excuse history never accepts. " -- Edward R. Murrow, News broadcaster
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FXA
Foreign Exchange Agreement
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