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AFC: The abbreviation for average fixed cost, which is fixed cost per unit of output, found by dividing total fixed cost by the quantity of output. Average fixed cost is one of three related cost averages. The other two are average variable cost and avarage total cost. Average fixed cost decreases with larger quantities of output. Because fixed cost is FIXED and does not change with the quantity of output, a given cost is spread more thinly per unit as quantity increases. A thousand dollars of fixed cost averages out to $10 per unit if only 100 units are produced. But if 10,000 units are produced, then the average shrinks to a mere 10 cents per unit.
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                           MARGINAL REVENUE CURVE, PERFECT COMPETITION: A curve that graphically represents the relation between the marginal revenue received by a perfectly competitive firm for selling its output and the quantity of output sold. Because a perfectly competitive firm is a price taker and faces a horizontal demand curve, its marginal revenue curve is also horizontal and coincides with its average revenue (and demand) curve. A perfectly competitive firm maximizes profit by producing the quantity of output found at the intersection of the marginal revenue curve and marginal cost curve. Perfect competition is a market structure with a large number of small firms, each selling identical goods. Perfectly competitive firms have perfect knowledge and perfect mobility into and out of the market. These conditions mean perfectly competitive firms are price takers, they have no market control and receive the going market price for all output sold.The marginal revenue curve reflects the degree of market control held by a firm. For a perfectly competitive firm, the marginal revenue curve is a horizontal, or perfectly elastic, line. For a monopoly, oligopoly, or monopolistically competitive firm, the marginal revenue curve is negatively sloped and lies below the average revenue (demand) curve. Marginal Revenue Curve, Perfect Competition |  | Marginal revenue is commonly represented by a marginal revenue curve, such as the one labeled MR and displayed in the exhibit to the right. This particular marginal revenue curve is that for zucchini sales by Phil the zucchini grower, a presumed perfectly competitive firm. The vertical axis measures marginal revenue and the horizontal axis measures the quantity of output (pounds of zucchinis). Although quantity on this particular graph stops at 10 pounds of zucchinis, the nature of perfect competition indicates it could easily go higher. This curve indicates that if Phil sells the first pound of zucchinis (an increase in production from 0 to 1), then his extra revenue is $4. However, if he sells his tenth pound (an increase in production from 9 to 10), then he also receives $4 of extra revenue. Should he sell his hundredth pound (an increase in production from 99 to 100), then he moves well beyond the graph, but his marginal revenue remains at $4. Because Phil is a perfectly competitive firm, his marginal revenue curve is also his demand curve and his average revenue curve. All three curves coincide for perfect competition.
 Recommended Citation:MARGINAL REVENUE CURVE, PERFECT COMPETITION, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 2000-2026. [Accessed: October 10, 2026]. Check Out These Related Terms... | | | | | | | | | | | Or For A Little Background... | | | | | | | | | | | | And For Further Study... | | | | | | | | | Related Websites (Will Open in New Window)... | | | |
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YELLOW CHIPPEROON [What's This?]
Today, you are likely to spend a great deal of time flipping through the yellow pages looking to buy either a coffee cup commemorating the first day of winter or a video game player. Be on the lookout for the last item on a shelf. Your Complete Scope
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
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"Be civil to all; sociable to many; familiar with few; friend to one; enemy to none. " -- Benjamin Franklin, statesman
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CLADR Class Life Asset Depreciation Range
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