indexed value: 1. The ratio of the purchasing power of the Millennium Dollar® to the U.S. dollar, which is tracked by the percentage change in the inflation index from the base-line-date. If the indexed value of the MR$ is $1.15, then it would take 1.15 USD to purchase the same a quantity of goods and services as 1.00 MR$. 2. The value at which merchants are asked to accept the MR$ for the sale of goods and services. 3. Please note: the indexed value is different than the currency exchange rate. See: currency exchange rate.