He established his position based on the economics and social policies he studied in Germany; he joined and became a core member of Society for the Study of Social Policy (of Japan, in 1897) after he returned from Germany.
ドイツにて修得した経済学、社会政策の立場に基づき、帰国後社会政策学会(日本1897年)に参加して中心メンバーとなった。