Currency board Helena continue to operate currency boards, backing their locally printed currency notes with pound sterling reserves. A gold standard is a special case of a currency board where the value of the national currency is linked to the value of gold instead of a foreign currency. For a precise definition of what constitutes a currency board, including past examples, see: Currency board A currency board is a monetary authority which is required to maintain a fixed exchange rate with a foreign currency. This policy objective requires the conventional objectives of a central bank to be subordinated to the exchange rate
WCU – World Currency Unit base years are spliced to form a continuous series. The formula for the valuation of the World Currency Unit has been revised since 2008 so that the GDP weights are now revised every year. While still retaining the meaning of a unit of global real purchasing power, the WCU can now be interpreted as a GDP-weighted basket of currencies, each indexed against domestic inflation. The GDP-weighted basket of currencies has now formed the basis for a new formula for the effective exchange rate. The nominal value of this unit would rise with inflation in each economy. Moreover, the nominal value