dirty float การใช้

The dirty float works only if it is backed by credible policy,
However, since central banks frequently intervene to avoid excessive appreciation or depreciation, these regimes are often called " dirty float ".
The mere expectation or rumor of a central bank foreign exchange intervention might be enough to stabilize a currency, but aggressive intervention might be used several times each year in countries with a dirty float currency regime.
It will often have some influence over any official or mandated exchange rates : Some exchange rates are managed, some are market based ( free float ) and many are somewhere in between ( " managed float " or " dirty float " ).