North Korea
North Korea has the structural profile of a relatively industrialized country where nearly half of the Gross Domestic Product is generated by industry and human development is at medium levels. Purchasing power parity (PPP) GDP is estimated at $40 billion, with a very low per capita value of $1,800. In 2012, Gross national income per capita was $1,523, compared to $28,430 in South Korea. The North Korean won is the national currency, issued by the Central Bank of the Democratic People's Republic of Korea.
Korean mun
The mun was introduced as the main currency of Korea in 1633 and stayed in use until 1892. It resembled and was derived from the Chinese wen (cognate also to the Japanese mon, Ryukyuan mon, and the Vietnamese văn). Coins denominated in mun were cast in copper or bronze and were round with square holes. From the 17th century until the end of the 19th century, coins denominated in "mun" bearing the inscription "Sangpyeong Tongbo" (, ) were the most widely circulated currency. In 1888, coins were struck in small numbers denominated in mun and won (equal to 1000 mun). The mun was replaced in 1892 when the yang was introduced.