Eventually, during Wang Mang's "New" dynasty (9--23 AD) salt, iron, alcohol and copper coinage, along with the country's main mountains and rivers, were all placed under direct state control, in an effort to reduce society's economic inequalities.
直到紀元九年王莽建「新朝」，實施「六筦」，規定鹽、鐵、酒、名山大澤、錢布銅冶等皆歸國家管理，出發點亦是為了調整社會經濟上的不平等。