Etymology of the Korean currencies
The won is the currency of both North and South Korea. "Won" is a cognate of the Chinese currency unit, the yuan (//), and the Japanese currency unit, the yen (; ¥), meaning "round object". The won is subdivided into 100 jeon ().
Economy of North Korea
In late 2009, North Korea revalued its currency, effectively confiscating all privately held money above the equivalent of US$35 per person. The revaluation effectively wiped out the savings of many North Koreans. Days after the revaluation the won dropped 96% against the United States dollar. Pak Nam-gi, the director of the Planning and Finance Department of North Korea's ruling Workers' Party, was blamed for the disaster and later executed in 2010.
In 2004 and 2006 laws were passed to codify rules for savings and commercial banking. However it was not until 2012 that North Korean banks started to seriously compete for retail customers. Competing electronic cash cards have become widely accepted in Pyongyang and other cities, but are generally not linked to bank accounts. North Korean banks have introduced retail products which permit a mobile phone app to make payments and top-ups.