A fixed exchange rate, sometimes called a pegged exchange rate, is a type of exchange rate regime wherein a currency's value is matched to the value of another single currency or to a basket of other currencies, or to another measure of value, such as gold.
A fixed exchange rate is usually used to stabilize the value of a currency, vis-a-vis the currency it is pegged to. This facilitates trade and investments between the two countries, and is especially useful for small economies where external trade forms a large part of their GDP.
It is also used as a means to control inflation. However, as the reference value rises and falls, so does the currency pegged to it. In addition, a fixed exchange rate prevents a government from using domestic monetary policy in order to achieve macroeconomic stability
Fixing the value of the domestic currency relative to that of a low-inflation country is one approach central banks have used to pursue price stability. The advantage of an exchange rate target is its clarity, which makes it easily understood by the public. In practice, it obliges the central bank to limit money creation to levels comparable to those of the country to whose currency it is pegged. When credibly maintained, an exchange rate target can lower inflation expectations to the level prevailing in the anchor country. Experiences with fixed exchange rates, however, point to a number of drawbacks.