The Bureau for International Settlements (BIS), the central bankers’ bank, recently issued a report card on the efforts of their client central banks to boost growth since the last recession and given them a failing grade. In the report “Unconventional monetary policies: a re-appraisal,” the BIS economists wrote:
We reach three main conclusions: there is ample evidence that, to varying degrees, these measures have succeeded in influencing financial conditions even though their ultimate impact on output and inflation is harder to pin down;