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ACTUAL INVESTMENT: Investment expenditures that the business sector actual undertakes during a given time period, including both planned investment and any unplanned inventory changes. This is a critical component of Keynesian economics and the analysis of macroeconomic equilibrium, which occurs when actual investment is equal to planned investment. The difference between planned and actual investment is unplanned investment, which is inventory changes caused by a difference between aggregate expenditures and aggregate output. Should actual and planned investment differ, then aggregate expenditures are not equal to aggregate output, and the macroeconomy is not in equilibrium.
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ARC ELASTICITY The average elasticity for discrete changes in two variables. The distinguishing characteristic of arc elasticity is that percentage changes are calculated based on the average of initial and ending values of each variable, rather than initial values. Arc elasticity is generally calculated using the midpoint elasticity formula. The contrast to arc elasticity is point elasticity. For infinitesimally small changes in two variables, arc elasticity is the same as point elasticity.
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ORANGE REBELOON
[What's This?]
Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club hoping to buy either a replacement remote control for your stereo system or a computer that can play video games and burn DVDs. Be on the lookout for bottles of barbeque sauce that act TOO innocent.
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This isn't me! What am I?
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John Maynard Keynes was born the same year Karl Marx died.
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"You can't build a reputation on what you are going to do." -- Henry Ford, automaker
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SPO
Strongly Pareto Optimal
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