Currency is the most important form of money in the present world. But it was not always like this. Earlier, coins usually made of gold or silver was used as a form of money. Coins have a natural or inherent value. Gold coins were used for large purchases while silver or copper coins were used for smaller purchases during the medieval period. However, this has been replaced with banknotes. Banknotes are worthless otherwise in terms of natural or inherent value unlike gold coins. These banknotes get the value by decree of the government who declare the banknotes as money.
Currency exchange is used to facilitate trade in good and services between countries that have different currencies. The trade in goods and services using various currencies become possible with exchange rates between any two currencies. The monetary authority that determines the production and distribution of the currencies as well as influences the value of the currency with reference to other currencies is usually the country’s Ministry of Finance or the central bank. For instance, in the United States it is the Federal Reserve System.
The name of the currency is the same in some countries. Countries such as United States, Malaysia, Canada, Zimbabwe, Singapore and Australia have named their currency as dollar. There are other similar currencies common to a number of countries such as Dinar, Franc, Escudo, Gulden, Frank, Krone, Lira, Mark, Livre, Pound, Peso, Rial, Real, Rupee, Ruble, Shilling and Scudo. Sometimes the same currency becomes the common currency used in a number of countries such in European Union where Euro is used as the common currency. A foreign currency is sometimes accepted as the legal tender as, for instance, the US Dollar in Panama and El Salvador. Trading in currencies takes place in the foreign exchange market, both for the purpose of international trade as well as for speculation. Forex trading is explained, amongst others, by a number of websites and books such as forex-trading-made-ez.com , Forex Trading Explained and Tax Lien Investing.
The exchange rate between two currencies is determined by the demand of each of these currencies. When the demand increases and supply is limited, the value of that currency rises. If the demand is less than available supply of the currency, the value of the currency falls.
