Rate of inflation

Consumers try to avoid the eroding effect inflation has on their purchasing power. Consequently, goods from countries with a low inflation rate become more attractive than the goods from countries with higher inflation. In turn, the currency from the lower inflation country rises in value, while the currency from the higher inflation country falls in value. Both the inflation factor and the purchasing power of the currencies directly impact currency exchange rates. For example, if the United States is experiencing lower inflation than its trading partner Germany, the DM/USD ratio would rise to reflect the growing price level in Germany relative to the United States. This factor is rooted in the concept of purchasing power parity. It holds that, over the long run, a currency exchange rate adjusts to reflect the difference in price levels between countries.