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LONG-RUN AVERAGE COST CURVE: A curve depicting the per unit cost of producing a good or service in the long run when all inputs are variable. The long-run average cost curve (usually abbreviated LRAC) can be derived in two ways. On is to plot long-run average cost, which is, long-run total cost divided by the quantity of output produced. at different output levels. The more common method, however, is as an envelope of an infinite number of short-run average total cost curves. Such an envelope is base on identifying the point on each short-run average total cost curve that provides the lowest possible average cost for each quantity of output. The long-run average cost curve is U-shaped, reflecting economies of scale (or increasing returns to scale) when negatively-sloped and diseconomies of scale (or decreasing returns to scale) when positively sloped. The minimum point (or range) on the LRAC curve is the minimum efficient scale.
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LEAKAGES Non-consumption uses of aggregate income. The three uses of income grouped under the heading of leakages are saving, taxes, and imports. Leakages subtract from the core circular flow containing consumption, production, and income. The injections-leakages model is a Keynesian economics analysis that combines leakages with injections (investment expenditures, government purchases and exports) to identify the equilibrium level of aggregate production and income.
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BLUE PLACIDOLA
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Today, you are likely to spend a great deal of time at an auction hoping to buy either a small, foam rubber football or an instructional DVD on learning to the play the oboe. Be on the lookout for the last item on a shelf.
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Post WWI induced hyperinflation in German in the early 1900s raised prices by 726 million times from 1918 to 1923.
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"The secret of getting ahead is getting started. The secret of getting started is breaking your complex, overwhelming tasks into small manageable tasks, and then starting on the first one. " -- Mark Twain, writer
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RATS
Regression Analysis of Time Series (software)
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