Yoshimune was concerned about the violently fluctuating price of rice, and it is said that Tanuma wondered whether the problem could be solved by promoting a monetary economy in Japan.
当時、米相場の乱高下に頭を悩ます吉宗を身近で見て、田沼は日本に貨幣経済を普及させて問題を解決できないか、と考えたという。