As the outputs of gold and silver began to decline after the Kanei era, in spite of the increase of expenditure due to the economic development and the population growth, the shogunate government got into financial trouble.
また寛永期を過ぎると金銀の産出に陰りが見え始めたのに対し、人口が次第に増加し経済が発展して幕府の支出が増大したため財政難に陥るようになる。