Fed's Rosengren: Optimal rate of inflation may move around just as does the natural rate of unemployment

Below are the key highlights, via LiveSquawk, from Boston Fed President Eric Rosengren's speech that was delivered at the Hutchins Center on Fiscal and Monetary Policy at Brookings.

Optimal rate of inflation may move around just as does the natural rate of unemployment.

Supports focusing on an inflation range, with the potential to move within the range as the optimal inflation rate changes.

Good time to consider periodic assessment of monetary policy framework with input from inside and outside Fed.

Any significant change in the framework should involve active consultation with congress.

Several compelling arguments for a more robust periodic review of the Fed’s monetary policy framework.