[fiatmoney]

It's difficult to un-print money, especially when it's traded away for other currencies. That means you don't necessarily want to finance a move to temporarily drive down the price of your currency by expanding the money supply - if you think you're defending it against a short-term fluctuation (eg, a flight-to-safety from Euro-denominated banks), excess printing will cause the value to be much lower after the transient circumstance has passed.