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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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KEYNESIAN CROSS A diagram illustrating the basic Keynesian theory of macroeconomics, with aggregate expenditures measured on the vertical axis and aggregate production measured on the horizontal axis, with the relation between aggregate expenditures and aggregate production represented by a positively-sloped aggregate expenditures line. The "cross" aspect of this diagram is the intersection between the aggregate expenditures line and a 45-degree line indicating every point of equality between aggregate expenditures and aggregate production. The "Keynesian" aspect of this diagram is derived from John Maynard Keynes, the developer and namesake of Keynesian economics.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time at a garage sale looking to buy either a coffee cup commemorating the first day of spring or a printer that works with your stockpile of ink cartridges. Be on the lookout for defective microphones.
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This isn't me! What am I?
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Three-forths of the gold mined each year is used to manufacture jewelry.
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"Being defeated is only a temporary condition; giving up is what makes it permanent." -- Marilyn vos Savant, Author
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MSE
Minimum Efficient Scale
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