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AGGREGATE DEMAND DETERMINANTS: An assortment of ceteris paribus factors that affect aggregate demand, but which are assumed constant when the aggregate demand curve is constructed. Changes in any of the aggregate demand determinants cause the aggregate demand curve to shift. While a wide variety of specific ceteris paribus factors can cause the aggregate demand curve to shift, it's usually most convenient to group them into the four, broad expenditure categories -- consumption, investment, government purchases, and net exports. The reason is that changes in these expenditures are the direct cause of shifts in the aggregate demand curve. If any determinant affects aggregate demand it MUST affect one of these four expenditures.
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MARGINAL PRODUCTIVITY THEORY A theory used to analyze the profit-maximizing quantity of inputs (that is, the services of factor of productions) purchased by a firm in the production of output. Marginal-productivity theory indicates that the demand for a factor of production is based on the marginal product of the factor. In particular, a firm is generally willing to pay a higher price for an input that is more productive and contributes more to output. The demand for an input is thus best termed a derived demand.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time wandering around the downtown area hoping to buy either a video camera with stop action features or one of those memory foam pillows. Be on the lookout for broken fingernail clippers.
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In the Middle Ages, pepper was used for bartering, and it was often more valuable and stable in value than gold.
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"The greatest barrier to success is the fear of failure." -- Sven Goran Eriksson, writer
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IJIO
International Journal of Industrial Organization
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