Brotherhood economics (Japanese: 兄弟経済; Hepburn: Kyōdai Keizai) is a socio-economic concept associated with Toyohiko Kagawa, a Japanese Christian novelist and social reformer, and the author of the book Brotherhood Economics published in 1936. Influenced by his Christian faith and his aversion to warfare, critiqued prevailing political economies of his time—fascism, Soviet-style communism, and capitalism—for their concentration of wealth and power, which he believed perpetuated poverty. He proposed an alternative model where Christian churches, cooperatives, and pacifist organizations collaborate to foster small, local economies grounded in cooperation.