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CHANGE IN AGGREGATE EXPENDITURES: The movement along an aggregate demand curve caused by a change in the price level. This should be contrasted directly with a change in aggregate demand. You might also want to review the terms change in quantity demanded and change in demand, as well. A change in aggregate expenditures means that we have identified a NEW level of expenditures on the existing aggregate demand curve. In contrast, a change in aggregate demand means that we have changed, moved, or shifted, the entire aggregate demand curve, the whole range of price levels and aggregate expenditures has changed.
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MARGINAL REVENUE PRODUCT AND FACTOR DEMAND A perfectly competitive firm's factor demand curve is that negatively-sloped portion of its marginal revenue product curve. A perfectly competitive firm maximizes profit by hiring the quantity of input that equates factor price and marginal revenue product. As such, the firm moves along its negatively-sloped marginal revenue product curve in response to changing factor prices.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius trying to buy either a small palm tree that will fit on your coffee table or several magazines on fashion design. Be on the lookout for fairy dust that tastes like salt.
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Okun's Law posits that the unemployment rate increases by 1% for every 2% gap between real GDP and full-employment real GDP.
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"What we have done for ourselves alone dies with us; what we have done for others and the world remains and is immortal." -- Albert Pike
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MP
Marginal Product
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