The Value of the Dollar
Monday, June 30th, 2008The value of the dollar has declined versus other important currencies for years. One dollar bought over 230 yen in January 1980 and over 300 yen in the early 1970s, versus just over 100 yen today. One euro bought about one dollar in January 2003 and often less than one dollar before this date, but now one euro buys nearly $1.60. See the Federal Reserve Bank of St Louis for this data; http://research.stlouisfed.org/fred2/categories/15. The value of the dollar is in the news more and more today, and as international trade increasingly becomes more important to the United States, exchange rates will only become increasingly important to people. The questions then are, why has the dollar weakened in value over time and what does this mean for the United States.
The decline in the value of the dollar versus the yen is most easily explained by focusing on the trade deficit the United States has with Japan. The United States currently runs an annual trade deficit of goods and services equal to about seventy billion dollars with Japan (see the Bureau of economic Analysis for this data; http://www.bea.gov/international/bp_web/list.cfm?anon=71®istered=0). The trade deficit results in sales of dollars in the foreign exchange markets in order to buy the yen needed to import these goods and services. In other words, this increase in the supply of dollars results in a decrease in the value of the dollar relative to the Yen. Over the years, other factors have also contributed to changes in the exchange rate between the dollar and the yen including; interest rates, economic growth, and the performance of the financial markets in each country.
The declining value of the dollar versus the euro is largely affected by changes in the overall trade balance between the United States and the rest of the world. Data related to the trade balance on a goods and services basis indicates approximate equality between the United States and the rest of the world prior to 1980, Thereafter there has been a significant pattern of large trade deficits, and today the deficit on a goods and services basis approximately two hundred billion dollars. For this data, see the Federal Reserve Bank of St. Louis; http://research.stlouisfed.org/fred2/series/BOPBGS?cid=125. These large trade deficits have contributed to a weaker dollar relative to the euro.
The reason why I have focused on the overall trade picture in discussing the value of the dollar relative to the euro has a lot to do with the euro representing an alternative to the dollar as a global reserve currency. The European Union is approximately equal in size with the United States in terms of its economy and population. Furthermore, most people perceive Europe to be equally stable politically and economically. That being said, other important factors affecting the value of the dollar relative to the euro include interest rates, economic growth, and financial markets. The European Central Bank has in recent years tended to keep interest rates higher than the Federal Reserve has because of their stronger focus on fighting inflation, and these higher interest rates have led to a greater demand for the euro.
The impact of the weaker dollar on people in the United States is increasingly becoming evident. For example, the weaker dollar contributes to higher oil prices because oil is priced in dollars. The weaker dollar also contributes to higher rates of inflation in general because foreign producers will have to raise the prices of their products in order to stabilize their profits. Therefore, these higher prices tend to increase the inflation rate and contribute to higher interest rates. On the other hand, the weaker dollar positively impacts exports from the United States because the weaker dollar makes products made in the United States more competitive in foreign markets.
