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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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SLOPE, AGGREGATE EXPENDITURES LINE The positive slope of the aggregate expenditures line is the sum of the marginal propensity to consume (MPC), marginal propensity to invest (MPI), and marginal propensity for government purchases (MPG), less the marginal propensity to import (MPM). This slope is greater than zero but less than one, reflecting induced expenditures by the four macroeconomic sectors (household, business, government, and foreign). The slope of the aggregate expenditures line determines 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 looking for a downtown retail store looking to buy either a set of luggage without wheels or a how-to book on wine tasting. Be on the lookout for jovial bank tellers.
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Before 1933, the U.S. dime was legal as payment only in transactions of $10 or less.
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"God grants victory to perseverance. " -- Simon Bolivar, South American liberator
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VAR
Vector Autoregression
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