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LONG-RUN MARGINAL COST CURVE: A graphical representation of the relationship between long-run marginal cost and the quantity of output produced. Like other marginal curves, the long-run marginal cost curve follows the average-marginal rule relative to the long-run average cost curve. In all outward appearance, the long-run marginal cost curve looks very much like the short-run marginal cost, that is, it is U-shaped. However, the U-shape is attributable to returns to scale rather than increasing and decreasing marginal returns.
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SLOPE, INVESTMENT LINE The positive slope of the investment line is also termed the marginal propensity to invest (MPI). This slope is greater than zero but less than one, reflecting induced investment. The slope of the investment line affects the slope of the aggregate expenditures line and thus also affects the magnitude of the multiplier process.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time wandering around the shopping mall hoping to buy either a birthday greeting card for your grandfather or a weathervane with a cow on top. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
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"A successful man is one who can lay a firm foundation with the bricks others have thrown at him. " -- David Brinkley, newsman
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EJ
Economic Journal
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