After two decades of successfully restoring price stability in much of the world economy, central banks begin the next millennium facing a new set of challenges. One key task is how to conduct monetary policy in an era of price stability. Clearly, policymakers would like inflation to remain...

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Monetary policy analysts looking for a model on which to base decisions may consider two popular approaches-the New Keynesian (NK) and the identified vector autoregression (VAR) approaches. Choosing between the two can be difficult: NK models are stylized and have simple rules while structural...