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What is foreign exchange

Foreign exchange, or forex is the conversion of one country's currency into that of another. In a free economy, a country's currency is valued according to factors of supply and demand. In other words, a currency's value can be pegged to another country's currency, such as the U.S. dollar, or even to a basket of currencies. A country's currency value also may be fixed by the country's government. However, most countries float their currencies freely against those of other countries, which keeps them in constant fluctuation.

The value of any particular currency is determined by market forces based on trade, investment, tourism, and geo-political. Every time a tourist visits a country, for example, he or she must pay for goods and services using the currency of the host country. Therefore, a tourist must exchange the currency of his or her home country for the local currency. Currency exchange of this kind is one of the demand factors for a particular currency. Another important factor of demand occurs when a foreign company seeks to do business with a company in a specific country. Usually, the foreign company will have to pay the local company in their local currency. At other times, it may be desirable for an investor from one country to invest in another, and that investment would have to be made in the local currency as well. All of these requirements produce a need for foreign exchange and are the reasons why foreign exchange markets are so large.

Foreign exchange is handled globally between banks and all transactions fall under the auspice of the Bank of International Settlements.

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