In all financial deals - personal, local, national- money has a price.
The longer you leave it, the higher the price. However, the innate insularity of the US raises its head once again and promptly buries it!
All market economies should raise interest rates in concert so as not to produce currency anomalies; market economies need money to have a value and to be the yardstick against which can judge the value of other assets. It is also high time assets such as property are included in inflation figures, their exclusion makes a nonsense of the measurement of living costs.