Sargent (1999) warns that if policy makers’ views on the unemployment-inflation trade-off are driven by empirical correlations, rather than theory, disinflations (escapes from high to low inflation) may periodically occur but are not bound to last. This Paper asks how different inflation...

We provide algorithms to solve a linear-quadratic optimal control problem with commitment. By extending to the case of imperfect information a procedure outlined in Ljungqvist and Sargent (2002), we make the results of Svensson and Woodford (2000) easy to implement. We provide a Mat-lab package...