Online Currency Trading

The following theories explain the fluctuations in FX rates in a floating exchange rate regime (In a fixed exchange rate regime, FX rates are decided by its government):

(a) International parity conditions viz; purchasing power parity, interest rate parity, Domestic Fisher effect, International Fisher effect. Though to some extent the above theories provide logical explanation for the fluctuations in exchange rates, yet these theories falter as they are based on challengeable assumptions [e.g., free flow of goods, services and capital] which seldom hold true in the real world.

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The foreign exchange market is unique because of

• its trading volumes,
• the extreme liquidity of the market,
• its geographical dispersion,
• its long trading hours: 24 hours a day except on weekends (from 22:00 UTC on Sunday until 22:00 UTC Friday),
• the variety of factors that affect exchange rates.
• the low margins of profit compared with other markets of fixed income (but profits can be high due to very large trading volumes)
• the use of leverage

Main foreign exchange market turnover, 1988 - 2007, measured in billions of USD.

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