Free Float
The largest number of countries, about 33, allow market forces
to determine their currency’s value.
Managed Float
About 46 countries combine government intervention with market
forces to set exchange rates.
Pegged to another currency
Such as the U.S. dollar or euro.
No national currency
Some countries do not bother printing their own currency. For
example, Ecuador, Panama, and El Salvador have dollarized.
Montenegro and San Marino use the euro.