While much attention is now paid to personalities of incoming central bankers, far less attention is paid to debating central banks' mandates in light of the unusual fiscal and financial intermediary roles they have been fulfilling since 2008.
The crisis revealed institutional voids that the central banks filled quickly. Such ventures by central banks have been tolerated in the past too: there is nothing new about quantitative easing (QE). The Fed practiced it during the 1940-51 under the Treasury's explicit command, though the technique had no name then.
