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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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DISMAL SCIENCE A term for the study of economics developed during the late 18th and early 19th century when economists concluded that continued population growth would push wages and living standards to a minimal subsistence level and keep them there. It persists to the present time because economics continue to point out that actions result in opportunity cost, that nothing is free, and that eventually society has to pay the price for what it does.
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Lombard Street is London's equivalent of New York's Wall Street.
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"He, who every morning plans the transactions of the day, and follows that plan, carries a thread that will guide him through a labyrinth of the most busy life." -- Victor Hugo, Writer
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FIRA Foreign Investment Review Agency
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