DangBaekJeon result, DangBaekJeon became bad money, and SangPyeongTongBo became good money. This is related to Gresham's law, which is a monetary principle stating that "bad money drives out good". The casting of DangBaekJeon was stopped in April 1867. The next year, its distribution was stopped because of an appeal from Choe Ik-hyeon(Hangul: 최익현, Hanja: 崔益鉉), a janglyeong(Hangul:장령, Hanja: 掌令) in Joseon Dynasty. He insisted that DangBaekJeon affected adversely to all classes of the society in the past two years. After its distribution had stopped, DangBaekJeon was exchanged with SangPyeongTongBo or China money(Hangul: 청전, Hanja: 掌令) and was used in iron. Dangbaekjeon
Gresham's law for its bullion value, money that is considered to be "good" tends to leave an economy through international trade. International traders are not bound by legal tender laws as citizens of the issuing country are, so they will offer higher value for good coins than bad ones. The good coins may leave their country of origin to become part of international trade, escaping that country's legal tender laws and leaving the "bad" money behind. This occurred in Britain during the period of the gold standard. The law was named after Sir Thomas Gresham, a sixteenth-century financial agent of the English