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SHORT-RUN SUPPLY CURVE: For a perfectly competitive firm, the marginal cost curve that lies above the average variable cost curve. This segment of the marginal cost guides a perfectly competitive firm's profit maximizing production as it equates price to marginal cost. Because the marginal cost curve is positively sloped (due to the law of diminishing marginal returns), each firm's supply curve and the market supply curve are also positively sloped. The law of diminishing marginal returns thus provides an explanation for the law of supply. However, this only works for firms with NO market control. Monopoly, monopolistic competition, and oligopoly, with market control, do not achieve the same result.
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Lesson 3: Scarcity | Unit 5: THE Problem
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Page: 17 of 17
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- Why scarcity is considered to be THE economic problem.
- Why economists say that there are no free lunches.
- The pervasive problem of scarcity faced by all societies past and present.
- How we might solve the scarcity problem through limited wants and needs or unlimited resources and why this is unlikely to happen.
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MARGINAL COST AND LAW OF DIMINISHING MARGINAL RETURNS Decreasing then increasing marginal cost, reflected by a U-shaped marginal cost curve, is the result of increasing then decreasing marginal returns. In particular the decreasing marginal returns is caused by the law of diminishing marginal returns. As such, the law of diminishing marginal returns affects not only the short-run production of a firm but also the cost of short-run production. This translates into a positively-sloped supply curve for profit-maximizing competitive firms.
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BEIGE MUNDORTLE
[What's This?]
Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway hoping to buy either a dozen high trajectory optic orange golf balls or a large red and white striped beach towel. Be on the lookout for strangers with large satchels of used undergarments.
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Rosemary, long associated with remembrance, was worn as wreaths by students in ancient Greece during exams.
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"It's usually the last ounce of effort that tips the scales of success." -- Rick Beneteau
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TIAC
Thrift Institutions Advisory Council
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