
The currency exchange rate is the value of any currency relative to the currency of one country. For example, the exchange rate of 9.85 Canadian dollars means that 9.85 Canadian dollars are equal to 10.00 U.S. dollars. Banks, investors, travelers and others all keep watch on the current exchange rates. The rates seen on the news are the rates banks and finance firms charge each other for trading in large amounts of currency. Different rates apply for travelers and others buying currency. Online currency converter calculators are quite popular on the web and can let anyone know what the current value of the U.S. dollar is compared to foreign dollars. Coinmill.com has a calculator that converts U.S. dollars to any currency in the world all listed on one page.
The U.S. dollar is the legal tender most widely accepted in international transactions and is the reserve currency for many of the world's governments and institutions. The following countries use it solely as their official currency: o American Samoa o British Virgin Islands o El Salvador o Guam o Marshall Islands o Micronesia o Northern Mariana Islands o Palau o Puerto Rico o Turks and Caicos Islands o Virgin Islands o Timor-Leste o Ecuador o Johnston Island o Midway Islands o Wake Island Using U.S. currency as their only legal tender gives them much more financial stability and lower inflation.
One of the main reasons for the lowering of U.S. currency is debt, and the uncertainty that surrounds it. Foreign holders of the U.S. debt are concerned that the U.S. may let the dollar value decline so that the debt is less. Economic growth may slow if the government decides to raise taxes to help pay it off. Investors are buying non-dollar denominated assets to diversify their portfolios and to hedge against a falling dollar. They also hold their assets in other currency that is presently worth more. Finally, as to supply and demand, the Fed keeps interest rates down by injecting money into the economy. In other words, they print more money, but more money makes the dollar worth less.
The balance of trade is the difference between exports and imports. Currently, the U.S. is running a trade deficit which affects the dollar by reducing its value. Turning around this deficit would raise the value of the dollar. Lowering the price on foreign goods makes them more attractive to American buyers and increases the trade deficit. When the price of foreign goods goes up, American goods are more popular, and this reduces the deficit. This in turn supports the American economy which also raises the value of the dollar.
Investments and the balance of trade are the most important influences on the U.S. currency. Other factors, such as politics, inflation, weather, natural disasters and just about anything that affects the economy, can also affect the dollar. The rate of exchange on currency is truly a balancing act.

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