In conclusion, currency values are determined by many factors. Not just one issue, but a composite of many must be considered. In trading currencies, such as in FOREX, trades are usually made in pairs. Values must be relative to something. So how is a country doing relative to another country is also significant. Common Forex pairs are US dollar and Japanese yen, Euro and US dollar, for example. These and other factors determine the value of a currency. Some are tangible, some intangible.