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The main economic theories found in the foreign exchange deal with parity conditions. A parity condition is an economic explanation of the price at which two currencies should be exchanged, based on factors such as inflation and interest rates. The economic theories suggest that when the parity condition does not hold, an arbitrage opportunity exists for market participants. However, arbitrage opportunities, as in many other markets, are quickly discovered and eliminated before even giving the individual investor an opportunity to capitalize on them. Other theories are based on economic factors such as trade, capital flows and the way a country runs its operations. We review each of them briefly below. Major Theories: Purchasing Power Parity The relative version of PPP is as follows:
Where ‘e’ represents the rate of change in the exchange rate and ‘د€1‘ and ‘د€2‘represent the rates of inflation for country 1 and country 2, respectively. For example, if the inflation rate for country XYZ is 10% and the inflation for country ABC is 5%, then ABC’s currency should appreciate 4.76% against that of XYZ. Interest Rate Parity The formula for determining IRP can be found by:
Where ‘F’ represents the forward exchange rate; ‘S’ represents the spot exchange rate; ‘i1‘ represents the interest rate in country 1; and ‘i2‘ represents the interest rate in country 2. International Fisher Effect The formula for IFE is as follows:
Where ‘e’ represents the rate of change in the exchange rate and ‘i1‘ and ‘i2‘represent the rates of inflation for country 1 and country 2, respectively. Balance of Payments Theory If a country is running a large current account surplus or deficit, it is a sign that a country’s exchange rate is out of equilibrium. To bring the current account back into equilibrium, the exchange rate will need to adjust over time. If a country is running a large deficit (more imports than exports), the domestic currency will depreciate. On the other hand, a surplus would lead to currency appreciation. The balance of payments identity is found by:
Where BCA represents the current account balance; BKA represents the capital account balance; and BRA represents the reserves account balance. Real Interest Rate Differentiation Model Asset Market Model Monetary Model These economic theories, which are based on assumptions and perfect situations, help to illustrate the basic fundamentals of currencies and how they are impacted by economic factors. However, the fact that there are so many conflicting theories indicates the difficulty in any one of them being 100% accurate in predicting currency fluctuations. Their importance will likely vary by the different market environment, but it is still important to know the fundamental basis behind each of the theories. Economic Data The number of economic announcements made each day from around the world can be intimidating, but as one spends more time learning about the forex market it becomes clear which announcements have the greatest influence. Listed below are a number of economic indicators that are generally considered to have the greatest influence – regardless of which country the announcement comes from. Employment Data Interest Rates Gross Domestic Product Retail Sales Durable Goods Trade flow data looks at the difference between a country’s imports and exports, with a trade deficit occurring when imports are greater than exports. In the U.S., the Commerce Department releases balance of trade data on a monthly basis, which shows the amount of goods and services that the U.S. exported and imported during the past month. Capital flow data looks at the difference in the amount of currency being brought in through investment and/or exports to currency being sold for foreign investments and/or imports. A country that is seeing a lot of foreign investment, where outsiders are purchasing domestic assets such as stocks or real estate, will generally have a capital flow surplus. Balance of payments data is the combined total of a country’s trade and capital flow over a period of time. The balance of payments is split into three categories: the current account, the capital account and the financial account. The current account looks at the flow of goods and services between countries. The capital account looks at the exchange of money between countries for the purpose of purchasing capital assets. The financial account looks at the monetary flow between countries for investment purposes. Macroeconomic and Geopolitical Events
The History of the Forex The underlying idea behind the gold standard was that governments guaranteed the conversion of currency into a specific amount of gold, and vice versa. In other words, a currency would be backed by gold. Obviously, governments needed a fairly substantial gold reserve in order to meet the demand for currency exchanges. During the late nineteenth century, all of the major economic countries had defined an amount of currency to an ounce of gold. Over time, the difference in price of an ounce of gold between two currencies became the exchange rate for those two currencies. This represented the first standardized means of currency exchange in history. The gold standard eventually broke down during the beginning of World War I. Due to the political tension with Germany, the major European powers felt a need to complete large military projects. The financial burden of these projects was so substantial that there was not enough gold at the time to exchange for all the excess currency that the governments were printing off. Although the gold standard would make a small comeback during the inter-war years, most countries had dropped it again by the onset of World War II. However, gold never ceased being the ultimate form of monetary value. (For more on this, read The Gold Standard Revisited, What Is Wrong With Gold? and Using Technical Analysis In The Gold Markets.) Bretton Woods System To simplify, Bretton Woods led to the formation of the following:
One of the main features of Bretton Woods is that the U.S. dollar replaced gold as the main standard of convertibility for the world’s currencies; and furthermore, the U.S. dollar became the only currency that would be backed by gold. (This turned out to be the primary reason that Bretton Woods eventually failed.) Over the next 25 or so years, the U.S. had to run a series of balance of payment deficits in order to be the world’s reserved currency. By the early 1970s, U.S. gold reserves were so depleted that the U.S. treasury did not have enough gold to cover all the U.S. dollars that foreign central banks had in reserve. Finally, on August 15, 1971, U.S. President Richard Nixon closed the gold window, and the U.S. announced to the world that it would no longer exchange gold for the U.S. dollars that were held in foreign reserves. This event marked the end of Bretton Woods. Even though Bretton Woods didn’t last, it left an important legacy that still has a significant effect on today’s international economic climate. This legacy exists in the form of the three international agencies created in the 1940s: the IMF, the International Bank for Reconstruction and Development (now part of the World Bank) and GATT, the precursor to the World Trade Organization. (To learn more about Bretton Wood, read What Is The International Monetary Fund? and Floating And Fixed Exchange Rates.) Current Exchange Rates
Dollarization Pegged Rates For example, China pegged its yuan to the U.S. dollar at a rate of 8.28 yuan to US$1, between 1997 and July 21, 2005. The downside to pegging would be that a currency’s value is at the mercy of the pegged currency’s economic situation. For example, if the U.S. dollar appreciates substantially against all other currencies, the yuan would also appreciate, which may not be what the Chinese central bank wants. Managed Floating Rates Market Participants Governments and Central Banks Central banks are often involved in manipulating reserve volumes in order to meet certain economic goals. For example, ever since pegging its currency (the yuan) to the U.S. dollar, China has been buying up millions of dollars worth of U.S. treasury bills in order to keep the yuan at its target exchange rate. Central banks use the foreign exchange market to adjust their reserve volumes. With extremely deep pockets, they yield significant influence on the currency markets. Banks and Other Financial Institutions The interbank market is the market through which large banks transact with each other and determine the currency price that individual traders see on their trading platforms. These banks transact with each other on electronic brokering systems that are based upon credit. Only banks that have credit relationships with each other can engage in transactions. The larger the bank, the more credit relationships it has and the better the pricing it can access for its customers. The smaller the bank, the less credit relationships it has and the lower the priority it has on the pricing scale. Banks, in general, act as dealers in the sense that they are willing to buy/sell a currency at the bid/ask price. One way that banks make money on the forex market is by exchanging currency at a premium to the price they paid to obtain it. Since the forex market is a decentralized market, it is common to see different banks with slightly different exchange rates for the same currency. Hedgers If there is one thing that management (and shareholders) detest, it is uncertainty. Having to deal with foreign-exchange risk is a big problem for many multinationals. For example, suppose that a German company orders some equipment from a Japanese manufacturer to be paid in yen one year from now. Since the exchange rate can fluctuate wildly over an entire year, the German company has no way of knowing whether it will end up paying more euros at the time of delivery. One choice that a business can make to reduce the uncertainty of foreign-exchange risk is to go into the spot market and make an immediate transaction for the foreign currency that they need. Unfortunately, businesses may not have enough cash on hand to make spot transactions or may not want to hold massive amounts of foreign currency for long periods of time. Therefore, businesses quite frequently employ hedging strategies in order to lock in a specific exchange rate for the future or to remove all sources of exchange-rate risk for that transaction. For example, if a European company wants to import steel from the U.S., it would have to pay in U.S. dollars. If the price of the euro falls against the dollar before payment is made, the European company will realize a financial loss. As such, it could enter into a contract that locked in the current exchange rate to eliminate the risk of dealing in U.S. dollars. These contracts could be either forwards or futures contracts. Speculators The most famous of all currency speculators is probably George Soros. The billionaire hedge fund manager is most famous for speculating on the decline of the British pound, a move that earned $1.1 billion in less than a month. On the other hand, Nick Leeson, a derivatives trader with England’s Barings Bank, took speculative positions on futures contracts in yen that resulted in losses amounting to more than $1.4 billion, which led to the collapse of the company. Some of the largest and most controversial speculators on the forex market are hedge funds, which are essentially unregulated funds that employ unconventional investment strategies in order to reap large returns. Think of them as mutual funds on steroids. Hedge funds are the favorite whipping boys of many a central banker. Given that they can place such massive bets, they can have a major effect on a country’s currency and economy. Some critics blamed hedge funds for the Asian currency crisis of the late 1990s, but others have pointed out that the real problem was the ineptness of Asian central bankers
The Good and the Bad The currency market is also the only market that is truly open 24 hours a day with decent liquidity throughout the day. For traders who may have a day job or just a busy schedule, it is an optimal market to trade in. As you can see from the chart below, the major trading hubs are spread throughout many different time zones, eliminating the need to wait for an opening or closing bell. As the U.S. trading closes, other markets in the East are opening, making it possible to trade at any time during the day.
While the forex market may offer more excitement to the investor, the risks are also higher in comparison to trading equities. The ultra-high leverage of the forex market means that huge gains can quickly turn to damaging losses and can wipe out the majority of your account in a matter of minutes. This is important for all new traders to understand, because in the forex market – due to the large amount of money involved and the number of players – traders will react quickly to information released into the market, leading to sharp moves in the price of the currency pair. Though currencies don’t tend to move as sharply as equities on a percentage basis (where a company’s stock can lose a large portion of its value in a matter of minutes after a bad announcement), it is the leverage in the spot market that creates the volatility. For example, if you are using 100:1 leverage on $1,000 invested, you control $100,000 in capital. If you put $100,000 into a currency and the currency’s price moves 1% against you, the value of the capital will have decreased to $99,000 – a loss of $1,000, or all of your invested capital, representing a 100% loss. In the equities market, most traders do not use leverage, therefore a 1% loss in the stock’s value on a $1,000 investment, would only mean a loss of $10. Therefore, it is important to take into account the risks involved in the forex market before diving in. The equity markets often can hit a lull, resulting in shrinking volumes and activity. As a result, it may be hard to open and close positions when desired. Furthermore, in a declining market, it is only with extreme ingenuity that an equities investor can make a profit. It is difficult to short-sell in the U.S. equities market because of strict rules and regulations regarding the process. On the other hand, forex offers the opportunity to profit in both rising and declining markets because with each trade, you are buying and selling simultaneously, and short-selling is, therefore, inherent in every transaction. In addition, since the forex market is so liquid, traders are not required to wait for an uptick before they are allowed to enter into a short position – as they are in the equities market. Due to the extreme liquidity of the forex market, margins are low and leverage is high. It just is not possible to find such low margin rates in the equities markets; most margin traders in the equities markets need at least 50% of the value of the investment available as margin, whereas forex traders need as little as 1%. Furthermore, commissions in the equities market are much higher than in the forex market. Traditional brokers ask for commission fees on top of the spread, plus the fees that have to be paid to the exchange. Spot forex brokers take only the spread as their fee for the transaction. What Is Forex? The need to exchange currencies is the primary reason why the forex market is the largest, most liquid financial market in the world. It dwarfs other markets in size, even the stock market, with an average traded value of around U.S. $2,000 billion per day. (The total volume changes all the time, but as of April 2004, the Bank for International Settlements (BIS) reported that the forex market traded U.S. $1,900 billion per day.) One unique aspect of this international market is that there is no central marketplace forآ foreign exchange. Rather,آ currency tradingآ is conducted electronically over-the-counter (OTC), which means that all transactions occur via computer networks between traders around the world, rather than on one centralized exchange. The market is open 24 hours a day, five and a half days a week, and currencies are traded worldwide in the major financial centers of London, New York, Tokyo, Zurich, Frankfurt, Hong Kong, Singapore, Paris and Sydney – across almost every time zone. This means that when the trading day in the U.S. ends, the forex market begins anew in Tokyo and Hong Kong. As such, the forex market can be extremely active any time of the day, with price quotes changing constantly. Spot Market and the Forwards and Futures Markets What is the spot market? What are the forwards and futures markets? In the forwards market, contracts are bought and sold OTC between two parties, who determine the terms of the agreement between themselves. In the futures market, futures contracts are bought and sold based upon a standard size and settlement date on public commodities markets, such as the Chicago Mercantile Exchange. In the U.S., the National Futures Association regulates the futures market. Futures contracts have specific details, including the number of units being traded, delivery and settlement dates, and minimum price increments that cannot be customized. The exchange acts as a counterpart to the trader, providing clearance and settlement. Both types of contracts are binding and are typically settled for cash for the exchange in question upon expiry, although contracts can also be bought and sold before they expire. The forwards and futures markets can offer protection against risk when trading currencies. Usually, big international corporations use these markets in order to hedge against future exchange rate fluctuations, but speculators take part in these markets as well. (For a more in-depth introduction to futures, see Futures Fundamentals.) Note that you’ll see the terms: FX, forex, foreign-exchange market and currency market. These terms are synonymous and all refer to the forex market. The foreign exchange market (forex or FX for short) is one of the most exciting, fast-paced markets around. Until recently,آ forex trading in theآ currency market had been the domain of large financial institutions, corporations, central banks, hedge funds and extremely wealthy individuals. The emergence of the internet has changed all of this, and now it is possible for average investors to buy and sell currencies easily with the click of a mouse through online brokerage accounts. Daily currency fluctuations are usually very small. Most currency pairs move less than one cent per day, representing a less than 1% change in the value of the currency. This makes foreign exchange one of the least volatile financial markets around. Therefore, many currency speculators rely on the availability of enormous leverage to increase the value of potential movements. In the retail forex market, leverage can be as much as 250:1. Higher leverage can be extremely risky, but because of round-the-clock trading and deep liquidity, foreign exchange brokers have been able to make high leverage an industry standard in order to make the movements meaningful forآ currency traders. Extreme liquidity and the availability of high leverage have helped to spur the market’s rapid growth and made it the ideal place for many traders. Positions can be opened and closed within minutes or can be held for months. Currency prices are based on objective considerations of supply and demand and cannot be manipulated easily because the size of the market does not allow even the largest players, such as central banks, to move prices at will. The forex market provides plenty of opportunity for investors. However, in order to be successful, a currency trader has to understand the basics behind currency movements. The goal ofآ this forex tutorialآ is to provide a foundation for investors or traders who are new to theآ foreign currencyآ markets. We’ll cover the basics ofآ exchange rates,آ the market’sآ history and the key concepts you need to understand in order to be able to participate in this market. We’ll also venture into how to start trading foreign currencies and the different types of strategies that can be employed. article from investopedia |
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