They executed policies such as the formation of trade guilds (kabunakama), the monopoly system of the copper guild and so on, mine development, the Ezo (current Hokkaido) development plan, the expansion of foreign trade by exclusive selling of sea products (dried sea cucumber, dried abalone, and shark-fin), and the reclamation of the Inba marsh in Shimosa province.
内容は株仲間の結成、銅座などの専売制の実施、鉱山の開発、蝦夷地の開発計画、俵物などの専売による外国との貿易の拡大、下総国印旛沼の干拓に着手する等の政策を実施した。