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MARGINAL FACTOR COST AND AVERAGE FACTOR COST: The relation between marginal factor cost and average factor cost is comparable to other average-marginal relations found in the study of economics. For a firm that hires factors in a perfectly competitive factor market, marginal factor cost and average factor cost are equal, and equal to the factor market price. All three are represented by a horizontal, or perfectly elastic, curve equal to the factor market price. For a firm that hires factors in an imperfectly competitive factor market, especially monopsony, marginal factor cost is greater than both average factor cost and the factor market price.
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ASSUMPTIONS, KEYNESIAN ECONOMICS The macroeconomic study of Keynesian economics relies on three key assumptions--rigid prices, effective demand, and savings-investment determinants. First, rigid or inflexible prices prevent some markets from achieving equilibrium in the short run. Second, effective demand means that consumption expenditures are based on actual income, not full employment or equilibrium income. Lastly, important savings and investment determinants include income, expectations, and other influences beyond the interest rate. These three assumptions imply that the economy can achieve a short-run equilibrium at less than full-employment production.
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The portion of aggregate output U.S. citizens pay in taxes (30%) is less than the other six leading industrialized nations -- Britain, Canada, France, Germany, Italy, or Japan.
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"Time is the scarcest resource, and unless it is managed nothing else can be managed." -- Peter F. Drucker
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NAG
Net Annual Gain
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