Meanwhile, it is said that the mint output of copper coins was already behind the country's economic scale during the Tang Dynasty and under such circumstances the further outflow of copper coins plunged the Chinese economy into chaos by causing constant lack of copper coins called 'senko'.
一方では唐の時代には既に経済規模に対して銅銭発行量が追いついていなかったといわれる中での更なる銅銭流出は、結果的には「銭荒」と呼ばれる銅銭不足の状態を恒常化させて中国経済を混乱に陥れた。