Abstract:
Using high-frequency data in a Markov-switching framework, we identify states that imply different responses of the yield curve to unexpected changes in the federal funds target. Empirical estimates reveal a low-volatility state where long-term bonds respond significantly, and in a predictable manner, to unexpected changes in the federal funds target. An alternative state exists with higher volatility, where unexpected changes in the federal funds target raise the short-end of the yield curve, but have no significant effect on the long-end. The low-volatility state for long-term bonds occurs from September 1995 to May 1999 and again from March 2000 to January 2002. The timing of the switches between the two states for long-term bonds coincides with changes in FOMC communication policy - though not all changes in communications policy induce a switch.