Under a conventional policy rule, a central bank adjusts its policy rate linearly according to the gap between inflation and its target, and the gap between output and its potential. Under the opportunistic approach to disinflation a central bank controls inflation aggressively when inflation is...

A number of observers have advocated recently that the Federal Reserve take an "opportunistic" approach to the conduct of monetary policy. A hallmark of this approach is that the central bank focuses on fighting inflation when inflation is high but focuses on stabilizing output when inflation is...