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LAFFER CURVE: The graphical inverted-U relation between tax rates and total tax collections by government. Developed by economist Arthur Laffer, the Laffer curve formed a key theoretical foundation for supply-side economics of President Reagan during the 1980s. It is based on the notion that government collects zero revenue if the tax rate is 0% and if the tax rate is 100%. At a 100% tax rate no one has the incentive to work, produce, and earn income, so there is no income to tax. As such, the optimum tax rate, in which government revenue is maximized, lies somewhere between 0% and 100%. This generates a curve shaped like and inverted U, rising from zero to a peak, then falling back to zero. If the economy is operating to the right of the peak, then government revenue can be increased by decreasing the tax rate. This was used to justify supply-side economic policies during the Reagan Administration, especially the Economic Recovery Tax Act of 1981 (Kemp-Roth Act).
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POINT ELASTICITY The relative responsiveness of a change in one variable (call it B) to an infinitesimally small change in another variable (call it A). The notion of point elasticity typically comes into play when discussing the elasticity at a specific point on a curve.
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BLACK DISMALAPOD
[What's This?]
Today, you are likely to spend a great deal of time at the confiscated property police auction trying to buy either a rechargeable battery for your cell phone or a T-shirt commemorating the 2000 Olympics. Be on the lookout for the last item on a shelf.
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Two and a half gallons of oil are needed to produce one automobile tire.
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"Life is not a 'brief candle.' It is a splendid torch that I want to make burn as brightly as possible before handing it on to future generations. " -- Bernard Shaw, journalist
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IGARCH
Integrated Generalized Autoregressive Conditional Heteroskedasticity
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