 One form this may take is dollarization, the use of a foreign currency (not necessarily the U.S. dollar) as a national unit of currency.An example was dollarization in Ecuador, initiated in September 2000 in response to a 75% loss of value of the Ecuadorian sucre in early 2000.But usually the "dollarization" takes place in spite of all efforts of the government to prevent it by exchange controls, heavy fines and penalties.