The trade weighted US dollar index measures the value of the United States dollar relative to the currencies of a broad group of major trading partners, created and maintained by the Federal Reserve, with the Federal Reserve Bank of St. Louis providing the published data. It improves on the older U.S. Dollar Index by including additional currencies and by rebalancing its currency weights annually based on trade data, even though the index own value is updated far more frequently than the weightings themselves; the calculation combines the bilateral exchange rates of the included currencies through a geometric mean, with weights summing to 1.0. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
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1. Wikipedia: Trade-weighted US dollar index
Lead paragraph, first sentence defining the index
The trade-weighted US dollar index, also known as the broad index, was a measure of the value of the United States dollar relative to other world currencies.
Introduction, frequency
Dollar Index by including additional currencies and by rebalancing its currency weights annually based on trade data, even though the index own value is updated far more frequently than the weightings themselves; the calculation combines the bilateral exchange rates of the included currencies through a geometric mean, with weights summing to 1.0.
View the Source2. Board of Governors of the Federal Reserve System
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