The Mexican unidad de inversión (UDI,

ISO 4217 ISO 4217 is a standard published by the International Organization for Standardization (ISO) that defines alpha codes and numeric codes for the representation of currencies and provides information about the relationships between individual cu ...

code MXV) is an index unit of funds used in

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

. It can be traded in many currency markets because its value changes with respect to currencies. Unlike currencies, it is designed to retain its purchasing power and not be subject to

inflation In economics, inflation is an increase in the general price level of goods and services in an economy. When the general price level rises, each unit of currency buys fewer goods and services; consequently, inflation corresponds to a reductio ...

. The Mexican credit system (especially mortgages) uses the UDI rather than the

peso The peso is the monetary unit of several countries in the Americas, and the Philippines. Originating in the Spanish Empire, the word translates to "weight". In most countries the peso uses the Dollar sign, same sign, "$", as many currencies na ...

because of its stability.ExchangeRate.com.
Accessed April 29, 2012.

References

Financial markets Finance in Mexico {{finance-stub de:Mexikanischer_Peso#Mexikanische_Verrechnungseinheit