The Unidad de Valor Constante (UVC) was created by the "Ley de Valores" of Ecuador

Ecuador

Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

 in 1993, and abolished with dollarization

Dollarization

Dollarization occurs when the inhabitants of a country use foreign currency in parallel to or instead of the domestic currency. The term is not only applied to usage of the United States dollar, but generally to the use of any foreign currency as the national currency.The biggest economies to have...

 in the presidency of Jamil Mahuad on January 9, 2000. It was meant to help deal with the high levels of inflation experienced under the sucre. The 1 UVC was specified at its introduction (May 28, 1993) to equal 10,000 sucres

Ecuadorian sucre

The sucre was the currency of Ecuador between 1884 and 2000. Its ISO code was ECS and it was subdivided into 10 decimos or 100 centavos. The sucre was named after Antonio José de Sucre.-History:...

. Its value was adjusted daily by the "Instituto Nacional de Estadísticas y Censos" (INEC) in line with the rate of inflation.

It had the ISO 4217 currency code

ISO 4217

ISO 4217 is a standard published by the International Standards Organization, which delineates currency designators, country codes , and references to minor units in three tables:* Table A.1 – Current currency & funds code list...

ECV.