This paper derives and presents mean leads and lags as well as patterns of relative importance weights implied by the PAC (polynomial-adjustment-cost) error-correction equations which form the core of the FRB/US model at the Federal Reserve Board. Relative importance weights measure the...

This paper compares the role of stochastic volatility versus changes in monetary policy rules in accounting for the time-varying volatility of U.S. aggregate data. Of special interest to the authors is understanding the sources of the great moderation of business cycle fluctuations that the U.S....