a MARKET engaged in the buying and selling of FOREIGN CURRENCIES. Such a market is required because each country involved in INTERNATIONAL TRADE and investment has its own domestic currency and this needs to be exchanged for other currencies in order to finance trade and capital transactions. This function is undertaken by a network of private foreign exchange dealers and a country's monetary authorities acting through its central banks.

The series of contagious currency crises in the 1990s—in Mexico, Brazil, East Asia, and Argentina—again focused policy makers’ minds on the problems of the international monetary system. Moves, albeit limited, were made toward a new international financial architecture. Most importantly, these crises led to the establishment of the Financial Stability Forum (since 2009 the Financial Stability Board), which investigated the problems of offshore, capital flows, and hedge funds; and the G20, which attempted to broaden the international regime’s membership and thus deepen its legitimacy. In addition, there were calls for a currency transaction tax, named after Nobel Laureate James Tobin’s proposal, from many civil society nongovernmental organizations as well as some governments. The success of international monetary reform is a crucial issue for governments and their autonomy, firms and the stability of their investments, and citizens who ultimately are those who absorb these effects as they are transmitted into everyday life.

Currency trading and exchange first occurred in ancient times.[4] Money-changers (people helping others to change money and also taking a commission or charging a fee) were living in the Holy Land in the times of the Talmudic writings (Biblical times). These people (sometimes called "kollybistẻs") used city stalls, and at feast times the Temple's Court of the Gentiles instead.[5] Money-changers were also the silversmiths and/or goldsmiths[6] of more recent ancient times.
For high volume traders, FOREX.com offers an Active Trader program with five tiers of pricing. Level one starts with typical spreads of 1.2 pips on the EUR/USD for traders who have a balance of least $25,000. Spreads are further reduced with each subsequent level as traders surpass specific month-to-date (MTD) trading volume thresholds. For example, level five brings spreads as low as 0.84 pips on a pair for traders who reach higher than $500 million in MTD volume.
Flights to quality: Unsettling international events can lead to a "flight-to-quality", a type of capital flight whereby investors move their assets to a perceived "safe haven". There will be a greater demand, thus a higher price, for currencies perceived as stronger over their relatively weaker counterparts. The US dollar, Swiss franc and gold have been traditional safe havens during times of political or economic uncertainty.[76]
Many people question what a trader’s salary is. However, the truth is it varies hugely. The majority of people will struggle to turn a profit and eventually give up. On the other hand, a small minority prove not only that it is possible to turn a profit, but that you can also make huge returns. So it is possible to make money trading forex, but there are no guarantees. 75-80% of retail traders lose money.

Most developed countries permit the trading of derivative products (such as futures and options on futures) on their exchanges. All these developed countries already have fully convertible capital accounts. Some governments of emerging markets do not allow foreign exchange derivative products on their exchanges because they have capital controls. The use of derivatives is growing in many emerging economies.[60] Countries such as South Korea, South Africa, and India have established currency futures exchanges, despite having some capital controls.

Once Nixon abolished the gold standard, the dollar's value quickly plummeted. The dollar index was established to give companies the ability to hedge this risk. Someone created the U.S. Dollar Index to give them a tradeable platform. Soon, banks, hedge funds, and some speculative traders entered the market. They were more interested in chasing profit than in hedging risks. 
None of the models developed so far succeed to explain exchange rates and volatility in the longer time frames. For shorter time frames (less than a few days), algorithms can be devised to predict prices. It is understood from the above models that many macroeconomic factors affect the exchange rates and in the end currency prices are a result of dual forces of demand and supply. The world's currency markets can be viewed as a huge melting pot: in a large and ever-changing mix of current events, supply and demand factors are constantly shifting, and the price of one currency in relation to another shifts accordingly. No other market encompasses (and distills) as much of what is going on in the world at any given time as foreign exchange.[74]
Currency trading and exchange first occurred in ancient times.[4] Money-changers (people helping others to change money and also taking a commission or charging a fee) were living in the Holy Land in the times of the Talmudic writings (Biblical times). These people (sometimes called "kollybistẻs") used city stalls, and at feast times the Temple's Court of the Gentiles instead.[5] Money-changers were also the silversmiths and/or goldsmiths[6] of more recent ancient times.
In the context of the foreign exchange market, traders liquidate their positions in various currencies to take up positions in safe-haven currencies, such as the US dollar.[88] Sometimes, the choice of a safe haven currency is more of a choice based on prevailing sentiments rather than one of economic statistics. An example would be the financial crisis of 2008. The value of equities across the world fell while the US dollar strengthened (see Fig.1). This happened despite the strong focus of the crisis in the US.[89]
In the context of a general trading strategy, it is best to trade with trends. If the general trend of the FX market is moving up, you should be cautious and attentive in regards to taking any positions that may rely on the trend moving in the completely opposite direction. A trend can also apply to interest rates, equities, and different yields - and any other market that can be characterised by a movement in volume or price.
After you have opened an account, whether it be a demo or live account, you will need to download MetaTrader; a special program for trading on the Forex market. In the terminal, you can keep track of market quotes, make trades by opening and closing positions, and stay up to date with financial news. The terminal is available on PC as well as on mobile devices.
U.S. President Richard Nixon’s nullification of the Bretton Woods Accord in 1971 effectively ended the fixed price peg of the US Dollar — and by extension many other world currencies — to gold. The US Dollar officially became a floating fiat currency and was adopted as a reserve currency by many foreign nations, who continue to use it as a reserve currency today.
Before we proceed, we need to answer the question - what is the Forex market? Simply put, It is a global decentralised market for trading currencies. Moreover, it is the largest market in the world, processing trillions of dollars worth of transactions every day. The key participants in it are international banks, hedge funds, commercial companies, various central banks and, of course, retail FX brokers and investors.
Hedge funds – Somewhere around 70 to 90% of all foreign exchange transactions are speculative in nature. This means, the person or institutions that bought or sold the currency has no plan of actually taking delivery of the currency; instead, the transaction was executed with sole intention of speculating on the price movement of that particular currency. Retail speculators (you and I) are small cheese compared to the big hedge funds that control and speculate with billions of dollars of equity each day in the currency markets.
More specifically, the spot market is where currencies are bought and sold according to the current price. That price, determined by supply and demand, is a reflection of many things, including current interest rates, economic performance, sentiment towards ongoing political situations (both locally and internationally), as well as the perception of the future performance of one currency against another. When a deal is finalized, this is known as a "spot deal". It is a bilateral transaction by which one party delivers an agreed-upon currency amount to the counter party and receives a specified amount of another currency at the agreed-upon exchange rate value. After a position is closed, the settlement is in cash. Although the spot market is commonly known as one that deals with transactions in the present (rather than the future), these trades actually take two days for settlement.