In sticky price models with endogenous investment, virtually all monetary policy rules that set a nominal interest rate in response solely to future in°ation induce real indeterminacy of equilibrium. Applying the Samuelson-Farebrother conditions, we obtain a necessary and suffcient condition...

We assess the quantitative importance of expectation effects of regime shifts in monetary policy in a DSGE model that allows the monetary policy rule to switch between a “bad” regime and a ”good” regime. When agents take into account such regime shifts in forming expectations, the...