In order to solve their financial problems, the domains protected and encouraged the production of goods, set up domestic meeting places (meeting places for productions) run by them, made merchants monopolize the purchase and sales by contracts, and gained the profits to fill the income of the domains.
藩財政の窮乏を打開するために商品生産を藩が保護・奨励し、藩営の国産会所（物産会所）を設けて、買い上げと販売を請負商人などに独占させ、その利潤を藩の収入に充当した。