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The United States dollar ( symbol: $; currency code: USD; also abbreviated US$ to distinguish it from other dollar-denominated currencies; referred to as the dollar, U.S. dollar, American dollar, or colloquially buck) is the official currency of the United States and several other countries.
The U.S. Dollar Index ( USDX, DXY, DX, or, informally, the "Dixie") is an index (or measure) of the value of the United States dollar relative to a basket of foreign currencies, [1] often referred to as a basket of U.S. trade partners' currencies. [2] The Index goes up when the U.S. dollar gains "strength" (value) when compared to other currencies.
Notes. ^ The total sum is 200% because each currency trade is counted twice: once for the currency being bought and once for the one being sold. The percentages above represent the proportion of all trades involving a given currency, regardless of which side of the transaction it is on. For example, the US dollar is bought or sold in 88% of all ...
One business day before taking effect, the newly defined weights are converted to currency amounts based on an average of the exchange rate over the past three months, such that the value of the XDR in U.S. dollars remains the same before and after the change. The currency amounts then remain fixed throughout the five-year period.
The US dollar is an official currency in Zimbabwe, along with the euro, sterling, the pula, the rand, and several other currencies. A series of Zimbabwean Bond Coins was put into circulation on 18 December 2014 in 1, 5, 10, and 25 cent denominations, and afterwards 50 cent and 1 dollar bonds coins, which are pegged at the same rate as American ...
The Mexican peso, the US dollar, and the Canadian dollarall trace their origins back to the Spanish dollar. The trace also included the use of the caduceus sign($), also known as the dollar sign. [4] Sterling[edit] Before 1944, the world reference currency was the United Kingdom's sterling.
Reserve currency. A reserve currency is a foreign currency that is held in significant quantities by central banks or other monetary authorities as part of their foreign exchange reserves. The reserve currency can be used in international transactions, international investments and all aspects of the global economy.
Fiat money is a type of currency that is not backed by a precious metal, such as gold or silver, or backed by any other tangible asset or commodity. Fiat currency is typically designated by the issuing government to be legal tender, and is authorized by government regulation. Since the end of the Bretton Woods system in 1971, the major ...