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A: The common notation for the "intercept" term of an equation specified as Y = a + bX. Mathematically, the a-intercept term indicates the value of the Y variable when the value of the X variable is equal to zero. Theoretically, the a-intercept is frequently used to indicate exogenous or independent influences on the Y variable, that is, influences that are independent of the X variable. For example, if Y represents consumption and X represents national income, a measures autonomous consumption expenditures.
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POLICY LAGS Time lags that occur between the onset of an economic problem and the full impact of the policy intended to correct the problem. Policy lags come in two broad categories--inside lag (getting the policy activated) and outside lag (the subsequent impact of the policy). The three specific inside lags are recognition lag, decision lag, and implementation lag. The one specific outside lag is termed impact lag. Policy lags can reduce the effectiveness of business-cycle stabilization policies and can even destabilize the economy. Policy lags, especially inside lags, are often different for monetary policy than for fiscal policy.
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GRAY SKITTERY
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Today, you are likely to spend a great deal of time driving to a factory outlet seeking to buy either one of those memory foam pillows or a remote controlled train set. Be on the lookout for florescent light bulbs that hum folk songs from the sixties.
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A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court!
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