This paper studies a New Keynesian model in which monetary policy may switch between regimes. We derive sufficient conditions for indeterminacy that are easy to implement and we show that the necessary and sufficient condition for determinacy, provided by Davig and Leeper, is necessary but not...

In 1994 the FOMC began to release statements after each meeting. This paper investigates whether the public'sviews about the current path of the economy and of future policy have been affected by changes in the Federal Reserve's communications policy as reflected in private sector's forecasts of...