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PERFECT COMPETITION AND SHORT-RUN SUPPLY CURVE: A perfectly competitive firm's supply curve is that portion of its' marginal cost curve that lies above the minimum of the average variable cost curve. A perfectly competitive firm maximizes profit by producing the quantity of output that equates price and marginal cost. As such, the firm moves along it's marginal cost curve in response to alternative prices. Because the marginal cost curve is positively sloped due to the law of diminishing marginal returns, the firm's supply curve is also positively sloped.
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ASSUMPTIONS, CLASSICAL ECONOMICS Classical economics, especially as directed toward macroeconomics, relies on three key assumptions--flexible prices, Say's law, and saving-investment equality. Flexible prices ensure that markets adjust to equilibrium and eliminate shortages and surpluses. Say's law states that supply creates its own demand and means that enough income is generated by production to purchase the resulting production. The saving-investment equality ensures that any income leaked from consumption into saving is replaced by an equal amount of investment. Although of questionable realism, these three assumptions imply that the economy would operate at full employment.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time at an auction looking to buy either a T-shirt commemorating last Friday (you know why) or a rotisserie oven that can also toast bread. Be on the lookout for poorly written technical manuals.
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This isn't me! What am I?
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Natural gas has no odor. The smell is added artificially so that leaks can be detected.
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"I can't change the direction of the wind, but I can adjust my sails to always reach my destination." -- Jimmy Dean
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WLLN
Weak Law of Large Numbers
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