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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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LAW OF INCREASING OPPORTUNITY COST

The proposition that opportunity cost, the value of foregone production, increases as the quantity of a good produced increases. This fundamental economic principles can be seen in the production possibilities schedule and is illustrated graphically through the slope of the production possibilities curve. It generates a distinctive convex shape, flat at the top and steep at the bottom.

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Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors looking to buy either a printer that works with your stockpile of ink cartridges or income tax software. Be on the lookout for poorly written technical manuals.
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North Carolina supplied all the domestic gold coined for currency by the U.S. Mint in Philadelphia until 1828.
"The majority of men meet with failure because of their lack of persistence in creating new plans to take the place of those that fail. "

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