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COASE THEOREM: A policy proposition, developed by Ronald Coase, that pollution and other externalities can be efficiently controlled through voluntary negotiations among the affected parties (polluters and those harmed by pollution). A key to the Coase theorem is that many pollution problems involve common-property goods that have no clear-cut ownership or property rights. With clear-cut property rights, "owners" would have the incentive to achieve an efficient level of pollution. This theorem states that it doesn't matter who receives the property rights, so long as someone does. Pollution can be reduced through voluntary negotiation by assigning private property rights to common-property resources. If common-property resources are privately owned, a market in property rights can be established. Owners then have the incentive to protect the quality of their resources.
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PRICE INDEX A measure of the average of a group of prices calculated as a ratio to prices in a given time period (that is, a base year). A price index is primarily used to compare relative prices, or changes in the group prices over time. Such an index is a handy indicator of overall price trends. Two common price indexes that surface in the study of macroeconomics are the Consumer Price Index (CPI) and the GDP price deflator. Both are used to indicate the macroeconomy's average price level and to estimate the inflation rate. The Dow Jones Industrial Average (the Dow), Standard & Poor's 500, and the NASDAQ are well-known indexes of stock market prices.
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A U.S. dime has 118 groves around its edge, one fewer than a U.S. quarter.
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"If anything terrifies me, I must try to conquer it. " -- Francis Charles Chichester, yachtsman, aviator
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NLLS
Nonlinear Least Squares
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