A new currency is intended to challenge the U.S. dollar as the world's foremost reserve currency.
The WOCU, short for world currency unit, was actually launched by London-based WDX Organization in September 2009, but only seems to be gaining recognition now. Its value is determined as a derivative of the exchange rates of the world's top 20 currencies, as measured by GDP, in order to reduce the risk associated with exchange rate fluctuations. The new currency is similar to the International Monetary Fund's special drawing rights (SDR), which the IMF uses as a reserve asset to supplement the currency reserves of its member states. Both Russia and China have been pushing for the world to switch to a new currency.