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RECOGNITION LAG: In the context of economic policies, the time between a shock to the economy and realization that the shock has occurred. This is one of several policy lags that limit the effectiveness of stabilization policies designed to correct business-cycle fluctuations. This is also one of two inside lags. The other is an implementation lag. Also termed identification lag, the recognition lag emerges due to the time needed to measure economic activity. While the lag is generally positive, it actually can be negative through accurate forecasting techniques. When negative policies can be undertaken to correct a problem before it occurs.
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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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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time calling an endless list of 800 numbers hoping to buy either a T-shirt commemorating next Thursday or a birthday gift for your uncle. Be on the lookout for slow moving vehicles with darkened windows.
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This isn't me! What am I?
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
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"No man, for any considerable time, can wear one face to himself and another to the multitude without finally getting bewildered as to which may be true." -- Nathanial Hawthorne, Author
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RJE
RAND Journal of Economics
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