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HISTORICAL COST: An accounting principle stating that expenses are recorded in terms of original or acquisition cost. Such a practice does not necessarily indicate the opportunity cost or current market value.

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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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Today, you are likely to spend a great deal of time at a crowded estate auction hoping to buy either a decorative windchime with plastic or a flower arrangement for that special day for your mother. Be on the lookout for pencil sharpeners with an attitude.
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The penny is the only coin minted by the U.S. government in which the "face" on the head looks to the right. All others face left.
"Don't judge each day by the harvest you reap but by the seeds that you plant. "

-- Robert Louis Stephenson, writer

PDV
Present Discounted Value
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