This article examines the dynamic relationship between two key U.S. money market interest rates - the federal funds rate and the 3-month Treasury bill rate. Using daily data over the period 1974 to 1999, we find a long-run relationship between these two rates that is remarkably stable across...

A large empirical literature attempts to identify US monetary policy shocks using the effective federal funds rate. This paper compares the time series behavior of the effective federal funds rate to 10 US interest rates with maturities ranging form overnight to 10 years. Using a spectral...