If that were true then it would be time to rejoice and watch underemployment disappear. The central bank can then unload its balance sheets and reduce inflation to sustainable levels. If that does not help you can also increase taxation to take care of inflation. There are a lot of tools that can trivially deal with too much inflation but with deflation the only tool you have is the central bank pumping money into the market and so far it is failing to achieve its stated goals.