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TIME PERIOD: One of three elasticity determinants (budget proportion and substitute availability are the other two) stating that the elasticity of a good tends to be greater for a longer time period of analysis. In other words, the price elasticity of demand for gasoline is greater when the time period is one year than when it is one month. This elasticity determinant works for both the price elasticity of demand and the price elasticity of supply. In both cases, longer time periods allow consumers and produces more time to adjust to any price changes.
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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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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time at a garage sale hoping to buy either a T-shirt commemorating the 2000 Presidential election or a really, really exciting, action-filled video game. Be on the lookout for a thesaurus filled with typos.
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This isn't me! What am I?
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A half gallon milk jug holds about $50 in pennies.
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"Adversity is another way to measure the greatness of individuals. I never had a crisis that didn't make me stronger. " -- Lou Holtz, Football Coach
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OMO
Open Market Operations
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