This produced extremely powerful effects during the course of the global economy moving out of the Global Financial Crisis. At the same time, however, monetary policy became highly complex and difficult to understand for some non-experts.
Outside Japan,  9  There are various debates over why the target level of inflation should be 2 percent, or what would be the most desirable inflation rate. Recent studies increasingly suggest that the desirable inflation rate be positive in view of preventing a risk of falling into deflation, based on the experience of the Global Financial Crisis from 2008.