While I do see the temptation for governments to ask for higher inflation in order to monetise the dramatic build-up of public debt, let us not forget that it serves to expropriate the income and wealth of the general public to the benefit of those who have lived beyond their means. I can only reject the idea of raising inflation rates permanently.
I would not like to imagine the consequences if, on top of the current financial fragilities and in an environment of high public debt, the general public were to lose trust in the purchasing power of money. There is no evidence whatsoever to support that deviating from price stability and aiming at an inflation rate of 4% would enhance economic prosperity or growth.