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AGGREGATE EXPENDITURE LINE: A line representing the relation between aggregate expenditures and gross domestic product used in the Keynesian cross. The aggregate expenditure line is obtained by adding investment expenditures, government purchases, and net exports to the consumption line. As such, the slope of the aggregate expenditure line is largely based on the slope of the consumption line (which is the marginal propensity to consume), with adjustments coming from the marginal propensity to invest, the marginal propensity for government purchases, and the marginal propensity to import. The intersection of the aggregate expenditures line and the 45-degree line identifies the equilibrium level of output in the Keynesian cross.
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TOTAL VARIABLE COST Cost of production that does change with changes in the quantity of output produced by a firm in the short run. Total variable cost is one part of total cost. The other is total fixed cost. Variable cost depends on the level of output. If a firm produces more output, then variable cost is greater. If a firm produces no output, then variable cost is zero. A cost measure directly related to total variable cost is average variable cost.
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GRAY SKITTERY
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Today, you are likely to spend a great deal of time going from convenience store to convenience store seeking to buy either hand lotion, a big bottle of hand lotion or a lighted magnifying glass. Be on the lookout for broken fingernail clippers.
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Ragnar Frisch and Jan Tinbergen were the 1st Nobel Prize winners in Economics in 1969.
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"Everyone is bound to bear patiently the results of his own example. " -- Phaedrus, Philosopher
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