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Purchasing power parity principle
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Purchasing Power Parity and International Commodity Arbitrage
Foreign Exchange
Foreign exchange refers to two different things. The first is currency claims expressed in the equivalent value in foreign money. The second is actual transactions involving the conversion of money of one country into that of another.
Foreign exchange is necessary because different countries have different monetary units. One country’s currency typically cannot be used in another country. The determination of the price at which the currency of one country will be or should be exchanged for that of another country is the basis of this and many other essays and studies.
Foreign exchange is a commodity, and its price fluctuates based on supply and demand, like any commodity. This is not the place for a complete discussion of supply and demand as relates to foreign exchange, but for our purposes, we will assume that supply of and demand for a country’s currency moves along with the supply of or demand for that country’s products or the products of its trading partners. For example, if one country buys many more goods from its neighbor than its neighbor buys from it, the balance of payments at the end of the year will cause its neighbor’s currency to be in great demand, thereby driving its price up.
What in fact sets the exchange ratio between two currencies? Obviously supply and demand, but what causes supply and demand to set exchange rates at appropriate levels? With this question we begin the next section.
What is Purchasing Power Parity?
Perhaps the single most well known concept in foreign exchange theory is that of Purchasing Power Parity (PPP). The basic idea of PPP is that currencies represent purchasing power over goods and services. Either the exchange rate or price levels adjust to keep purchasing power constant. For example, say a particular basket of goods sells for $2000 in America and 1000 GBP in Great Britain. According to PPP, the exchange rate of dollars to pounds should be 2:1. If it were not 2:1; if, for example only 1.5 dollars was needed to purchase 1 pound, an arbitrageur would buy the basket of goods for 1000 pounds ($1500) and resell them in America for $2000. He would continue to do this until currency traders realized that they were being underpaid for their pounds and started to charge two dollars each for them, or Americans realized that they were paying too much for these goods and became willing to pay only $1500 for them, or some combination of the two.
Just like a corporation issues shares of stock to function as a productive entity, a country has to issue currency in order to fund its operations. This currency is the lifeblood of a nation, creating wealth for its citizens by fostering economic development and providing public infrastructure and services. In a true democracy, the government is owned by the citizens and operated by representatives of the population as a whole, who control and more importantly regulate the issuance of this currency. This is a critical point to remember.
Thus, imports of American goods are under less competitive pressure to keep prices low. Thus, weak dollar benefits U.S. exports by making American goods cheaper in foreign countries. Foreign tourists can afford to travel and visit the United States. When the dollar is falling, foreign purchasing power is increasing. Purchasing power is the amount of value of a good or service compared to the amount that you paid.
Historically, this is outlined in the domestic societal framework (a rationalist point of view dictating political outcomes as a direct result of domestic material interests in society). Whatever society wants, society gets, leaving the consumer is to benefit from a fixed exchange rate. Competition exists between all interests. Whatever interest dominates takes the winning interest. The winning interest, then, determines the outcome. With businesses facing pressure to decrease domestic prices, consumers now have the upper hand. (Wellhausen, 10-2-14). Thus, due to the enhancing credibility of the government, consumers also are to benefit from a fixed exchange rate. (Multiple governments
exchange rates, etc). Aside from this quibble, the heart of the matter is to what degree
The value of the US dollar relevant to other currencies is a major consideration for the Federal Reserve. If they prevent large changes in the value of the dollar, firms and individuals can comfortably plan ahead to purchase or sell goods abroad.
The practice of trading and bartering of commodities has been around since the beginning of time. The concept of commodity chains was developed by Terence Hopkins and Immanuel Wallerstein in an attempt to understand the spread of capitalism and economic change. (Bair & Werner, 2011) The emergence of capitalism has brought about an anthropogenic phenomenon know as globalization as a means to create profit and in doing so altered competitive dynamics (Gereffi 1999). Globalisation of economies has lead to the construction of chains of production, distribution and consumption transcending borders across the world. Gereffi (1994) identified these chains as Global Commodity Chains, using them as a method to analyze the global economy.
The following section will deal more on how the actual rates are determined in terms of calculating the currency translation. For now, it is important to note that you might need to use the exchange rates from the past as well as present. Therefore, proper bank statements and income records are essential to ensure you use the right rate.
The forward Currency Exchange Market allows interested parties to trade forward contracts on currencies (Madura, 2006, p117). Forward contracts are an agreement between a firm and a commercial bank to exchange a specified amount of currency, at a specified exchange rate and on a specified date. Forward contracts are being used around the world to mitigate the risk of wildly fluctuating foreign exchange rates in day to day business transactions. Firms use the forward contracts when they know they will need a certain amount of foreign currency at a set date in the future, it allows them to lock in a future exchange rate (Wikipedia, 2006).
Exchange rate is the ratio at which a unit of one country currency can be exchange for another country currency.
The leading model, Monetary Model links exchange rate movements to the balance of payment, which is used for medium to long term analysis. The following assumptions cons...
The foreign exchange market is high risk and sees more than $5 trillion dollars traded daily. Traders have to go to an intermediary such as a foreign exchange broker to exchange trades. The foreign exchange brokers make money on commissions and fees.
In addition to this the purchasing power parity needs to be taken into account amongst our selected countries. As one Dollar/Pound can buy more in one country than in another country therefore our data at dollar per head at must be taken with a view point of proportionality.
Machiraju (2002,75) explains the basis of this concept in these words, “In competitive markets with a large number of buyers and sellers and low cost access to information, exchange adjusted prices of tradable goods and financial assets must be equal worldwide. This law of one price is enforced by international arbitrageurs who buy low and sell high and prevent all deviations from equality. Four theoretical economic relationships emerge from arbitrage economic activity”.
The foreign exchange market is one of important mechanism in the international business because foreign exchange is an intermediary for all nations in term of the growth of the economy. There are many functions of foreign exchange market in the global economy. In the international business, it uses the foreign exchange markets in four ways. First, the pay...
The first of these exchange rates, nominal, is the number of units of a given currency that can purchase a unit of a given foreign currency (INSERT CITATION). When using this rate, countries are able to value of their own currency relative to one-another when trading in the foreign exchange market. This principle, however, is not exclusive to trading currencies. Similar to the nominal exchange rate, the real exchange rate uses goods and services in place of currency. As a result, it is defined as the amount of goods or services that can be traded in one country for a good or service in another country. Using this rate, countries are able to gauge the competitiveness of their goods and services in trading with any given country, making it a key factor for countries trading in the global economy.