* Permanent until the central bank chooses to contract their balance sheet at some point in the future. Perhaps a better way to describe it is that a pump and

* Permanent until the central bank chooses to contract their balance sheet at some point in the future. Perhaps a better way to describe it is that a pump and dump strategy has a transient effect on the value of the asset in question, whereas a central bank increasing the money supply has a persistent effect on the value of the currency in question.