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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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GOLDSMITH BANKING

An analysis of banking functions based on the semi-realistic activities of the goldsmith profession of Medieval Europe. Because the gold used a production inputs by goldsmiths was also used as money, they developed many modern banking functions, including maintaining deposits, making loans, keeping reserves, and creating money. While the story of goldsmith banking is often embellished for instructional purposes, it does contain the essence of how goldsmiths operated as banks.

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Today, you are likely to spend a great deal of time at a going out of business sale hoping to buy either a flower arrangement for that special day for your mother or a New York Yankees baseball cap. Be on the lookout for defective microphones.
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Before 1933, the U.S. dime was legal as payment only in transactions of $10 or less.
"Opportunities are usually disguised as hard work, so most people don't recognize them."

-- Ann Landers, columnist

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