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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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GOVERNMENT EXPENDITURES

Spending by the government sector including both the purchase of final goods and services, or gross domestic product, and transfer payments. Government expenditures are used by the government sector to undertake key functions, such as national defense and education. These expenditures are financed with a combination of taxes and borrowing.

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YELLOW CHIPPEROON
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Today, you are likely to spend a great deal of time wandering around the downtown area seeking to buy either a coffee cup commemorating last Friday (you know why) or a wall poster commemorating the first day of spring. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
"Failure is the opportunity to begin again, more intelligently. "

-- Henry Ford, automobile manufacturer

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