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LONG-RUN ADJUSTMENT: The combined adjustment of an industry and of each firm in the industry to an equilibrium condition that based on (1) profit maximization when all inputs are variable and (2) the entry and exit of firms. The complete adjustment is undertaken by both perfect competition and monopolistic competition. There are two parts of this adjustment process. One is the adjustment of each firm to the appropriate factory size that maximizes long-run profit. The other is the entry of firms into the industry or exit of firms out of the industry, to eliminated economic profits or economic losses. The end result of this long-run adjustment is different for the two market structures based on the fact that perfect competition has equality between price and marginal revenue, while monopolistic competition does not.
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RETURNS TO SCALE Changes in production the occur when all resources are proportionately changed in the long run. Returns to scale come in three forms--increasing, decreasing, or constant based on whether the changes in production are proportionally more than, less than, or equal to the proportional changes in inputs. Returns to scale are the guiding principle for long-run production, playing a similar role that the law of diminishing marginal returns plays for short-run production.
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Woodrow Wilson's portrait adorned the $100,000 bill that was removed from circulation in 1929. Woodrow Wilson was removed from circulation in 1924.
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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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CCA
Capital Cost Allowance
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