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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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SEASONAL UNEMPLOYMENT

Unemployment attributable to relatively regular and predictable declines in particular industries or occupations over the course of a year, often corresponding with the climatic seasons. Unlike cyclical unemployment, which may or may not occur at any given time, seasonal unemployment is an essential part of many jobs. For example, a regular, run-of-the-mill, department store Santa Clause can count on 11 months of unemployment each year. Seasonal unemployment is one of four unemployment sources. The other three are cyclical unemployment, frictional unemployment, and structural unemployment.

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Today, you are likely to spend a great deal of time wandering around the downtown area wanting to buy either a remote controlled train set or a genuine down-filled snow parka. Be on the lookout for rusty deck screws.
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Much of the $15 million used by the United States to finance the Louisiana Purchase from France was borrowed from European banks.
"My father used to say to me, „Whenever you get into a jam, whenever you get into a crisis or an emergency . . .become the calmest person in the room and you'll be able to figure your way out of it. "

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